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Easy Low Carb Chicken Casserole (Keto-Friendly & Family-Approved)

Prep Time 15 minutes
Cook Time 20 minutes
35 minutes
Course Main Course
Cuisine American
Servings 4
Calories 590 kcal

Ingredients
  

For the Casserole:

  • 4 cups cooked chicken breast, diced or shredded (rotisserie chicken works great)
  • 8 slices cooked and chopped bacon
  • 5 cups broccoli florets or 1 lb frozen spinach (thawed & well-drained)
  • 3 cloves garlic, minced
  • 1 cup ranch dressing
  • ½ cup shredded mozzarella cheese
  • ½ cup shredded cheddar cheese

For the Topping:

  • ½ cup shredded mozzarella cheese
  • ½ cup shredded cheddar cheese

Optional (for extra flavor):

  • 1-3 tsp ranch seasoning mix

Instructions
 

  • Prep the Veggies
    - If using frozen spinach: thaw completely and squeeze out as much liquid as possible.
    - If using broccoli: blanch in boiling water for 2–3 minutes until bright green, then drain well.
  • Mix the BaseIn a large bowl, combine:
    - Chicken, bacon, prepared veggies, garlic, ranch dressing, ½ cup mozzarella, and - ½ cup cheddar.Mix until everything is evenly coated. (Tip: You can also mix directly in your casserole dish to save dishes.)
  • Transfer to Casserole Dish: Spread mixture into a 9×13 inch (23×33 cm) baking dish.
  • Top with Cheese: Sprinkle the remaining mozzarella and cheddar evenly over the top.
  • Bake & Serve: Bake at 350°F (175°C) for 15–20 minutes, or until the casserole is hot and bubbly.Let cool for 5 minutes before serving.

Notes

  • Meal Prep Friendly: Makes great leftovers — perfect for next-day lunches.
  • Flexible Veggies: Swap broccoli for cauliflower, spinach, or Brussels sprouts.
  • Quick Shortcut: Rotisserie chicken works just as well as cooked chicken breast.
  • Cheese Tip: Mix part of the cheese into the casserole and save the rest for a golden, bubbly topping.
  • Moisture Alert: Be sure to drain spinach (or par-boil broccoli) to prevent a watery casserole.
  • Keto Approved: Only ~8–10 net carbs per serving, while packing in nearly 50g of protein.
  • Freezer Friendly: Assemble ahead, freeze unbaked, and cook straight from frozen when needed.
Keyword Keto