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Easy Low-Carb Chicken Casserole

A protein-rich, keto-friendly casserole featuring tender chicken and broccoli in a creamy cheese sauce with a golden cheddar topping.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 6 servings
Course: Dinner, Main Course
Cuisine: American
Calories: 485
Ingredients Equipment Method Notes

Ingredients
  

  • 1.5 lbs cooked chicken breast shredded or cubed, rotisserie works perfectly
  • 4 cups broccoli florets steamed until tender-crisp
  • 1 cup mayonnaise full-fat
  • 1/2 cup sour cream full-fat
  • 1/2 cup heavy cream
  • 2 cups shredded sharp cheddar cheese divided
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • 1/2 teaspoon smoked paprika
  • Salt and black pepper to taste
  • 1/2 cup crushed pork rinds optional, for keto-friendly crunchy topping

Equipment

  • 9x13-inch baking dish
  • large mixing bowl
  • whisk
  • Steamer basket

Method
 

  1. Preheat oven to 375°F (190°C) and lightly grease a 9x13-inch baking dish.
  2. In a large mixing bowl, combine mayonnaise, sour cream, heavy cream, garlic powder, onion powder, smoked paprika, and 1 cup of the shredded cheddar cheese. Whisk until smooth.
  3. Add cooked chicken and steamed broccoli to the bowl. Toss gently until everything is thoroughly coated in the creamy sauce. Season with salt and pepper.
  4. Spread the mixture evenly into the prepared baking dish.
  5. Sprinkle the remaining 1 cup of cheddar cheese over the top. If using crushed pork rinds for extra crunch, sprinkle them over the cheese.
  6. Bake for 25-30 minutes, or until the casserole is bubbling and the cheese on top is melted and slightly golden.
  7. Let the casserole rest for 5 minutes before serving to allow the sauce to set.

Notes

Storage: Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat covered at 350°F for 20-25 minutes or microwave at 50% power. Freezes well for up to 2 months. Substitutions: Swap broccoli for cauliflower or green beans. Replace mayonnaise with Greek yogurt for tangier, lighter version. Dark meat chicken adds more flavor. Cheese variations include gruyere, Monterey Jack, or parmesan blend. Make-Ahead: Assemble up to 24 hours ahead and refrigerate. Add 5-10 minutes to baking time. Pro Tip: Ensure broccoli is well-drained after steaming to prevent watery sauce.