Creamy Keto Chicken and Broccoli Alfredo Casserole: Your Ultimate Low-Carb Dinner Solution

Indulge in a delightful blend of tender chicken, vibrant broccoli, and a rich, cheesy Alfredo sauce with this fantastic keto-friendly casserole. It’s a satisfying, flavor-packed dinner that’s incredibly low in carbs but high in deliciousness, perfect for any night of the week. Prepare to fall in love with this creamy, comforting dish that makes healthy eating effortlessly enjoyable!

If you’re navigating the delicious world of ketogenic eating, you know the challenge can be finding meals that are both compliant and genuinely satisfying. This Keto Chicken and Broccoli Alfredo Casserole is a game-changer, offering a new, exciting spin on our incredibly popular keto chicken alfredo casserole recipe. It takes everything you love about creamy, cheesy Alfredo and combines it with the wholesome goodness of chicken and broccoli, all baked to perfection in an easy-to-prepare casserole.

This recipe isn’t just a carb-conscious choice; it’s a celebration of flavor and simplicity. We adore the classic pairing of tender chicken and nutrient-rich broccoli, especially when it’s generously enveloped in a rich, velvety Alfredo sauce and baked with a golden, bubbly cheese topping. It’s the kind of hearty, comforting dish that brings everyone to the table, making it an ideal choice for busy weeknights or relaxed family dinners.

One of the biggest advantages of this chicken and broccoli Alfredo recipe is its straightforward preparation. You won’t spend hours in the kitchen, yet you’ll deliver a meal that feels gourmet. It’s a fantastic way to introduce variety into your meal rotation, breaking away from your usual weeknight fare while effortlessly keeping your macronutrients in perfect balance. Enjoy a dish that’s fresh, flavorful, and perfectly aligned with your keto lifestyle.

For those who, like us, have an unyielding love for all things Alfredo, we highly recommend exploring our low carb chicken alfredo lasagna. It’s another innovative way to enjoy the creamy, cheesy goodness of Alfredo in a low-carb format, proving that eating healthy doesn’t mean sacrificing taste!

Why Choose a Keto Chicken and Broccoli Alfredo Casserole?

Living a ketogenic lifestyle means embracing foods that are low in carbohydrates, moderate in protein, and high in healthy fats. This casserole perfectly embodies these principles, making it an excellent addition to your meal plan. Not only does it support ketosis, but it also offers a wealth of nutritional benefits:

• Rich in Protein: Chicken breast is an excellent source of lean protein, essential for muscle maintenance, satiety, and overall body function.
• Packed with Nutrients: Broccoli is a powerhouse vegetable, loaded with vitamins C and K, fiber, and various antioxidants. It adds a lovely texture and a burst of freshness to the creamy sauce.
• Healthy Fats: The Alfredo sauce, when made keto-friendly (often with heavy cream, butter, and cheese), provides the necessary healthy fats to keep you feeling full and energized.
• Naturally Gluten-Free: Without any grains or traditional pasta, this casserole is inherently gluten-free, making it suitable for those with gluten sensitivities or preferences.
• Ultimate Comfort Food: There’s nothing quite like a warm, bubbly casserole straight from the oven. This dish offers all the comfort and satisfaction of classic comfort food without the carb overload.
• Great for Meal Prep: This casserole reheats beautifully, making it an ideal candidate for meal prepping. Cook a large batch and enjoy delicious, low-carb meals throughout the week.

Note: This post may contain affiliate links. That means if you click on a link and make a purchase we may receive a small commission. Thank you for supporting our content!

Essential Ingredients for Your Low-Carb Alfredo Casserole

Crafting this keto-friendly casserole requires a selection of fresh, high-quality ingredients that come together to create an unforgettable flavor profile. Here’s a detailed look at what you’ll need to gather:

• Broccoli Florets: The star vegetable of this dish. You have several options here:
  • Fresh Broccoli: Opt for full heads of broccoli and chop them into uniform bite-sized florets yourself. This often yields the freshest flavor and best texture.
  • Pre-cut Broccoli Florets: A convenient time-saver found in the produce section. Ensure they are still vibrant green and firm.
  • Frozen Florets: An excellent option for convenience and availability. If using frozen, make sure to thaw them completely and thoroughly drain any excess moisture before adding to the casserole to prevent a watery dish.

  Regardless of your choice, aim for roughly equal bite-sized pieces for even cooking.

• Chicken Breast: Lean and versatile, chicken breast provides the bulk of the protein.
  • Preparation: Cut the chicken into 1-inch cubes. Uniform pieces will ensure the chicken cooks evenly and quickly. You can also use cooked shredded chicken for an even faster prep time.
• Seasonings: A simple yet powerful blend to enhance the chicken’s natural flavor.
  • Onion Powder: Adds a foundational savory depth.
  • Garlic Powder: A must-have for aromatic richness that complements the Alfredo sauce.
  • Salt and Pepper: Essential for seasoning to taste and balancing the flavors.
• Olive Oil: Used for sautéing the chicken.
  • Alternatives: If olive oil isn’t your preference, feel free to use another light-tasting, keto-friendly oil such as avocado oil.
• Keto Alfredo Sauce: The heart of this creamy casserole.
  • Homemade Option: For the freshest and most controlled ingredients, follow our specific recipe for a homemade keto alfredo sauce.
  • Store-Bought Option: If you opt for a canned or jarred sauce, be extremely vigilant! Always check the carb count and ingredient list carefully to ensure it’s genuinely keto-compliant, as many commercial Alfredo sauces contain hidden sugars or starches. Note that the consistency might also vary from homemade.
• Shredded Mozzarella Cheese: For that irresistible, gooey, bubbly top and creamy texture throughout.
  • Shredding Your Own: For superior melting and less anti-caking agents, consider shredding a block of whole milk mozzarella yourself. A helpful trick is to freeze the fresh cheese block for about 15 minutes before shredding; it makes the process much easier!
  • Pre-shredded: A convenient option, but again, check labels for added starches that can increase carb count.

Simple Steps to Craft Your Keto Alfredo Casserole

Making this creamy, low-carb casserole is a straightforward process, ensuring a delicious meal is just a few steps away. Follow these easy instructions for a perfect result every time:

Preparation Steps:

1. Prepare the Chicken: Begin by taking your chicken breast and cutting it into roughly 1-inch uniform cubes. While a sharp kitchen knife works perfectly, many find that poultry shears can make this task even easier and quicker. Once cubed, place the chicken in a bowl and generously sprinkle it with the onion powder, garlic powder, salt, and pepper. Toss to ensure all pieces are evenly coated.
2. Cook the Chicken: Heat the olive oil in a medium skillet over medium-high heat. Once the oil is shimmering, add the seasoned chicken cubes to the skillet. Cook for approximately 8-10 minutes, stirring occasionally, until the chicken is thoroughly cooked through and lightly browned on all sides. It should reach an internal temperature of 165°F (74°C). Once cooked, remove the chicken from the skillet and set it aside.
3. Steam the Broccoli: While the chicken cooks, prepare your broccoli. Place the bite-sized broccoli florets in a microwave-safe bowl with about 1 cup of water. Cover the bowl with a damp paper towel or a microwave-safe lid. Microwave on high for approximately 3-4 minutes, or until the broccoli is fork-tender but still retains a slight crispness. Be careful not to overcook, as it will continue to cook in the oven. Promptly drain the water and pat the broccoli dry with paper towels to remove any excess moisture. Set aside.

Assembling and Baking the Casserole:

4. Preheat Oven & Prepare Sauce: Preheat your oven to 350 degrees F (175°C). While the oven heats, warm your keto Alfredo sauce in a small pot over medium-low heat on the stovetop. Once the sauce is hot and slightly simmering, add 3 ounces of the shredded mozzarella cheese. Stir continuously until the cheese has completely melted into the sauce, creating a smooth, luscious, and even creamier consistency.
5. Layer the Casserole – First Layer: Lightly spray a 13×9 inch casserole dish with non-stick cooking spray to prevent sticking. Spread approximately ½ cup of the prepared keto Alfredo sauce evenly across the bottom of the dish. This creates a flavorful base.
6. Add Broccoli and Chicken: Arrange half of the steamed broccoli florets over the sauce, forming an even layer. Then, distribute half of the cooked chicken cubes over the broccoli. Allow the chicken to settle into the spaces between the broccoli florets to ensure a well-distributed casserole.
7. Sauce and Cheese – First Layer: Pour ¾ cup of the cheesy keto Alfredo sauce evenly over the broccoli and chicken layer. Follow this by sprinkling 4.5 ounces of shredded mozzarella cheese over the sauce.
8. Repeat Layers – Second Layer: Repeat the layering process. Add the remaining half of the broccoli florets, followed by the rest of the cooked chicken. Pour the remaining keto Alfredo sauce over this second layer, ensuring everything is well-coated. Finally, top the casserole with the last of the shredded mozzarella cheese.
9. Bake to Golden Perfection: Carefully place the assembled casserole into the preheated oven. Bake for 30-35 minutes, or until the casserole is thoroughly warmed through, the cheese on top is fully melted, and it has achieved a beautiful golden-brown, bubbly finish.
10. Serve and Enjoy: Remove the casserole from the oven and let it rest for a few minutes before serving. This allows the sauce to set slightly. Serve warm and savor every creamy, cheesy, low-carb bite!

Tips for Success:

• Don’t Overcook Broccoli: The broccoli will continue to cook in the oven, so aim for slightly undercooked when steaming.
• Even Chicken Cubes: Uniformly sized chicken pieces ensure even cooking and better texture in the final dish.
• Homemade Alfredo is Best: While store-bought works in a pinch, making your own keto Alfredo sauce allows for better control over ingredients and flavor, and typically results in a richer, thicker sauce.
• Customize Your Cheese: Feel free to experiment with other keto-friendly cheeses like Parmesan, cheddar, or a mix for different flavor profiles.

Frequently Asked Questions About Keto Chicken & Broccoli Alfredo Casserole

Can I Use Frozen Broccoli in this Recipe?

Absolutely! Using frozen broccoli is a convenient and perfectly acceptable option, especially if fresh broccoli isn’t readily available or you’re looking to save time. The key is proper preparation: first, defrost the broccoli completely, either by microwaving it or by letting it thaw overnight in the refrigerator. It doesn’t need to be hot before adding it to the casserole. Crucially, once thawed, press out and remove any excessive moisture by patting it thoroughly dry with paper towels. This step is vital to prevent your casserole from becoming watery. Once dried, chop it into bite-sized pieces and incorporate it into the recipe as instructed.

Can I Add Other Vegetables to This Casserole?

Yes, absolutely! This casserole is quite versatile. Other low-carb vegetables that would work well include spinach (sautéed and squeezed dry), mushrooms (sautéed), bell peppers, or even cauliflower florets. Just ensure any added vegetables are cooked to a tender-crisp stage before baking to avoid a crunchy texture in the final casserole.

How to Store Leftover Keto Chicken and Broccoli Alfredo Casserole?

Proper storage is key to enjoying your leftovers. Allow the casserole to cool completely to room temperature before transferring. Once cooled, place it in an airtight container. It can then be refrigerated for up to 4 to 5 days, maintaining its flavor and texture. This makes it an excellent option for meal prepping throughout the week.

What’s the Best Way to Reheat Leftovers?

There are two primary methods for reheating this casserole:

• Oven Reheating: For a larger portion or to maintain a crispier top, preheat your oven to 325 degrees F (160°C). Place the casserole (covered with foil to prevent drying) in the oven and cook for about 25 to 30 minutes, or until it is heated through to your desired temperature.
• Microwave Reheating: For individual portions, the microwave is your fastest friend. Place a serving in a microwave-safe bowl and cook on high for approximately 2 to 3 minutes, or until warmed through. Stir halfway for more even heating.

Can I Freeze this Keto Chicken and Broccoli Alfredo Casserole?

While technically possible, we generally do not recommend freezing this dish. The primary reason is that Alfredo sauce, which is dairy-based, tends to separate and can develop a grainy or curdled texture when frozen and then thawed. This can significantly impact the creamy consistency and overall appeal of the casserole. For best results and optimal texture, it’s best enjoyed fresh or refrigerated for a few days.

What to Serve with Your Keto Chicken and Broccoli Alfredo Casserole

This casserole is incredibly hearty and fulfilling on its own, but you can certainly round out the meal with a few complementary keto-friendly sides:

• Simple Green Salad: A fresh, crisp green salad with a light vinaigrette dressing provides a refreshing contrast to the richness of the casserole.
• Garlic “Bread” (Keto Version): Prepare slices of keto bread or fathead dough, toasted with garlic butter and herbs, for a delicious low-carb accompaniment.
• Steamed Asparagus: Lightly steamed asparagus spears are a classic pairing for Alfredo dishes and add another layer of healthy greens.
• Roasted Brussels Sprouts: Roasting Brussels sprouts with a drizzle of olive oil, salt, and pepper brings out their natural sweetness and a lovely crisp texture.
• Zucchini Noodles: For those who miss pasta, a small side of lightly sautéed zucchini noodles can be a great way to add more vegetables and mimic a pasta dish.

Looking for More Delicious Keto Dinner Recipes?

If you loved this Keto Chicken and Broccoli Alfredo Casserole, you’re in for a treat! Our collection of low-carb recipes is designed to keep your meals exciting and your taste buds happy. Explore more amazing keto dinner ideas that are easy to make and bursting with flavor:

• Instant Pot Butter Chicken {Low Carb} – A quick and flavorful Indian-inspired dish.
• Keto Big Mac Bites – All the classic flavors of a Big Mac, perfectly bite-sized and low-carb.
• Low Carb Pizza Casserole – Satisfy your pizza cravings without the carbs in a comforting casserole form.
• Keto Meatloaf – Low Carb Comfort Food – A classic comfort food reimagined for your keto diet.
• Keto Big Mac Casserole – Another take on the Big Mac, this time in a hearty casserole.
• Keto Buffalo Chicken Cauliflower Casserole – Spicy buffalo chicken paired with cauliflower in a cheesy bake.
• Taco Zucchini Boats {Keto} – Flavorful Tex-Mex inspired zucchini boats, perfect for a lighter meal.
• More keto recipes… – Dive into our full archive for endless low-carb inspiration!

Loved this recipe?
Don’t miss out on more fantastic low-carb creations! Make sure to follow us on Instagram and Pinterest for daily inspiration, tips, and delicious recipes like this one. Your keto journey just got tastier!

Recipe: Keto Chicken and Broccoli Alfredo Casserole

Keto chicken and broccoli alfredo casserole is a tasty low carb dinner filled with chicken and broccoli baked in a cheesy sauce.

• Servings: 10
• Prep Time: 10 mins
• Cook Time: 40 mins
• Total Time: 50 mins
• Created By: Kat Jeter & Melinda Machado

Ingredients

• 14 ounces Broccoli florets, cut into bite-size pieces
• 32 ounces Chicken breast
• 1 teaspoon Onion powder
• 1 teaspoon Garlic powder
• ½ teaspoon Salt
• ¼ teaspoon Pepper
• 1 tablespoon Olive oil
• 2 cups Keto Alfredo Sauce
• 12 ounces Shredded mozzarella cheese, divided

Instructions

1. Cut the chicken breast into 1-inch cubes and sprinkle with onion powder, garlic powder, salt, and pepper.
2. In a skillet over medium high heat add your olive oil and the cubed chicken. Cook for approximately 10 minutes, or until chicken is cooked through. Set aside.
3. Steam the broccoli. Place cut broccoli florets in a microwave safe bowl with 1 cup of water. Cover with a damp paper towel and microwave on high for approximately 3 minutes or until the broccoli is fork tender. Don’t overcook!
4. Drain the broccoli and pat dry with a paper towel. Set aside.
5. Preheat oven to 350 degrees F (175°C).
6. In a small pot heat the keto alfredo sauce over medium low heat. When it is hot add 3 ounces of mozzarella cheese to the sauce and stir until it is melted and the sauce is smooth.
7. Prepare a 13×9 inch casserole dish by spraying it with non-stick spray then spread ½ cup of keto alfredo sauce on the bottom.
8. Next add half of the broccoli to the dish making a layer of it on the bottom.
9. Top with half of the cooked chicken. Let the chicken fill in the spaces between the broccoli to fill the dish.
10. Pour ¾ cup of keto alfredo sauce over the broccoli and chicken.
11. Sprinkle 4.5 ounces of mozzarella on top.
12. Repeat steps using the remaining broccoli and chicken to make a layer, followed by the remaining keto alfredo sauce, and topped with the last of the mozzarella cheese.
13. Place in oven and bake for 30 minutes, or until the casserole is warmed through and the cheese is fully melted.

Nutrition Information (Estimated Per Serving)

Serving: 6 ounces, Calories: 486kcal, Carbohydrates: 6g, Protein: 34g, Fat: 36g, Saturated Fat: 21g, Trans Fat: 1g, Cholesterol: 170mg, Sodium: 726mg, Potassium: 542mg, Fiber: 1g, Sugar: 2g, Vitamin A: 1430IU, Vitamin C: 37mg, Calcium: 399mg, Iron: 1mg

Nutrition Disclaimer: We are not certified nutritionists. Nutrition facts are an estimate and are provided as a courtesy. They are generated by an online API which recognizes ingredient names and amounts and makes calculations based on the serving size. Results may vary.

• Course: Main
• Cuisine: American