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A close-up of Cheesy Chicken Spinach Casserole placed on white kitchen marble with steam coming up.

Cheesy Chicken Spinach Casserole

A creamy, low-carb comfort dinner featuring tender chicken pieces and wilted spinach baked in a rich cream cheese and mozzarella sauce.
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Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 6 people
Course: Dinner
Cuisine: American
Calories: 420
Ingredients Equipment Method Notes

Ingredients
  

  • 2 pounds boneless skinless chicken breasts Cut into bite-sized pieces
  • 10 ounces fresh baby spinach Wilted down before mixing
  • 8 ounces cream cheese Softened to room temperature
  • 1.5 cups shredded mozzarella cheese Divided for sauce and topping
  • 0.5 cup grated Parmesan cheese Adds savory depth
  • 2 cloves fresh garlic Minced finely

Equipment

  • 1 Skillet For searing chicken and greens
  • 1 casserole dish 9x13 baking dish
  • 1 Mixing bowl For blending cheese sauce

Method
 

  1. Preheat your oven to 375°F before starting any ingredient prep.
  2. Cook diced chicken in a hot skillet with olive oil until golden brown.
  3. Add fresh spinach to the skillet, stirring until wilted completely down.
  4. Combine softened cream cheese, garlic, and cheeses in a large bowl.
  5. Fold the cooked chicken and drained spinach gently into the cheese sauce.
  6. Transfer the creamy mixture into a greased baking dish evenly.
  7. Scatter remaining mozzarella cheese across the top of the casserole.
  8. Bake at 375°F for twenty minutes until bubbling and golden brown.

Notes

Squeeze all excess moisture out of the wilted spinach using a clean kitchen towel to ensure the creamy sauce stays thick and rich.