Keto Chicken and Broccoli Casserole Recipe
This Keto Chicken and Broccoli Casserole is a comforting, low-carb dish perfect for busy weeknights. Packed with creamy cheese and tender chicken, it’s both satisfying and easy to prepare.

Ingredients
- 2 cups cooked chicken, shredded or diced
- 2 cups broccoli florets, steamed
- 1 cup heavy cream
- 1 cup shredded mozzarella cheese
- 1/2 cup mayonnaise
- 2 cloves garlic, minced
- 1 teaspoon Italian seasoning
- Salt and pepper to taste
- 1/2 cup grated Parmesan cheese (for topping)
Instructions
- Step 1: Preheat your oven to 350°F (175°C).
- Step 2: In a large bowl, combine the cooked chicken, steamed broccoli, heavy cream, mozzarella cheese, mayonnaise, garlic, Italian seasoning, salt, and pepper. Mix well to evenly distribute all ingredients.
- Step 3: Pour the mixture into a greased 9×9-inch baking dish and spread it out evenly.
- Step 4: Sprinkle the grated Parmesan cheese evenly on top of the casserole.
- Step 5: Bake in the preheated oven for 25-30 minutes, or until the casserole is bubbly and the top is golden brown.
- Step 6: Allow the casserole to cool for a few minutes before serving to let it set.
Tips & Variations
- Use rotisserie chicken for a quick shortcut and extra flavor.
- Swap broccoli for cauliflower or a mix of green vegetables to change up the texture.
- Add a pinch of red pepper flakes to the mixture for a subtle spicy kick.
- For an even creamier casserole, stir in some cream cheese along with the mayonnaise.
Storage
Store leftover casserole in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave or oven until warmed through. This dish does not freeze well due to the cream and mayonnaise base.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use frozen broccoli instead of fresh?
Yes, frozen broccoli works well as long as it’s fully thawed and drained of excess moisture to avoid a watery casserole.
Is this recipe suitable for a strict keto diet?
Absolutely. This casserole is low in carbs and high in fat, making it perfect for maintaining ketosis.
PrintKeto Chicken and Broccoli Casserole Recipe
This Keto Chicken and Broccoli Casserole is a rich, comforting low-carb dish perfect for those following a ketogenic diet. Featuring tender cooked chicken, steamed broccoli, and a creamy combination of heavy cream, mozzarella, mayonnaise, and flavorful Italian seasonings, this casserole delivers a cheesy, satisfying meal that is easy to prepare and bake.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 4 servings 1x
- Category: Casserole
- Method: Baking
- Cuisine: American
- Diet: Low Carb
Ingredients
Protein and Vegetables
- 2 cups cooked chicken, shredded or diced
- 2 cups broccoli florets, steamed
Dairy and Condiments
- 1 cup heavy cream
- 1 cup shredded mozzarella cheese
- 1/2 cup mayonnaise
- 1/2 cup grated Parmesan cheese (for topping)
Seasonings
- 2 cloves garlic, minced
- 1 teaspoon Italian seasoning
- Salt and pepper to taste
Instructions
- Preheat Oven: Preheat your oven to 350°F (175°C) to prepare for baking the casserole.
- Combine Ingredients: In a large bowl, mix together the cooked chicken, steamed broccoli, heavy cream, shredded mozzarella, mayonnaise, minced garlic, Italian seasoning, salt, and pepper until well combined.
- Prepare Baking Dish: Grease a 9×9-inch baking dish and pour the mixture evenly into it, smoothing the top for uniform cooking.
- Add Topping: Sprinkle the grated Parmesan cheese evenly over the top of the casserole to create a golden, flavorful crust.
- Bake: Bake in the preheated oven for 25-30 minutes, or until the casserole is bubbly and the Parmesan topping is golden brown.
- Cool and Serve: Allow the casserole to cool for a few minutes before serving to let the flavors set and avoid burns.
Notes
- For a lower carb option, ensure that the mayonnaise and cheeses used contain no added sugars or fillers.
- You can substitute steamed fresh broccoli with frozen broccoli florets; just make sure to drain excess water well before mixing.
- Add chopped spinach or mushrooms for extra veggies if desired.
- This casserole can be made ahead of time and refrigerated before baking; just add a few extra minutes to the baking time if baking directly from chilled.
- Leftovers can be stored in the refrigerator for up to 3 days and reheated in the oven or microwave.
Keywords: keto chicken casserole, broccoli casserole, low carb dinner, keto dinner recipe, cheesy chicken casserole

