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Low Carb Chicken Casserole

A creamy, cheesy low carb chicken casserole loaded with bacon, ranch dressing, and your choice of broccoli or spinach. Perfect for keto diets and ready in just 25 minutes.
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Course Dinner, Main Course
Cuisine American
Servings 6
Calories 400 kcal

Ingredients
  

  • For the casserole:
  • 4 cups diced or shredded cooked chicken breast
  • 8 slices cooked and chopped bacon
  • 5 cups broccoli florets OR 1 pound thawed frozen spinach well-drained
  • 3 cloves minced garlic
  • 1 cup ranch dressing
  • 1/2 cup shredded mozzarella cheese
  • 1/2 cup shredded cheddar cheese
  • For the topping:
  • 1/2 cup shredded mozzarella cheese
  • 1/2 cup shredded cheddar cheese
  • Optional:
  • 1-3 teaspoons ranch seasoning mix for added flavor

Instructions
 

  • Preheat your oven to 350°F and lightly grease a 9x13-inch baking dish.
  • If using fresh broccoli, blanch the florets in boiling water for 2-3 minutes until bright green. Drain well and set aside. If using frozen spinach, thaw completely and squeeze out all excess liquid using a kitchen towel.
  • In a large mixing bowl, combine the diced chicken, chopped bacon, prepared vegetables, and minced garlic. Mix everything together until evenly distributed.
  • Add the ranch dressing and half of both cheeses (1/2 cup mozzarella and 1/2 cup cheddar) to the bowl. If using ranch seasoning, add it now. Stir everything together until well combined.
  • Transfer the mixture to your prepared baking dish and spread it evenly across the bottom.
  • Bake uncovered for 15 minutes until the casserole is heated through and bubbling around the edges.
  • Remove from oven and sprinkle the remaining cheese (1/2 cup mozzarella and 1/2 cup cheddar) evenly over the top.
  • Return to oven for an additional 5-10 minutes until the cheese is melted and slightly golden.
  • Let the casserole rest for 5 minutes before serving. This allows it to set slightly and makes serving easier.

Notes

Chicken Options: Rotisserie chicken is the easiest option - one whole chicken yields about 4 cups of shredded meat. You can also use leftover cooked chicken or turkey.
Draining Vegetables: This is crucial! Squeeze frozen spinach in a clean kitchen towel until no liquid comes out. For broccoli, drain well after blanching to prevent a watery casserole.
Make-Ahead: Assemble the casserole up to 24 hours in advance. Cover and refrigerate, then bake when ready (add 5 extra minutes to cook time if baking from cold).
Storage: Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat individual portions in the microwave for 2-3 minutes.
Freezing: This casserole freezes well for up to 3 months. Portion into individual servings before freezing for easy meal prep.
Keyword keto chicken casserole, low carb chicken casserole