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–+ servings
Creamy Chicken and Spinach Casserole

Creamy Chicken and Spinach Casserole for Cozy Weeknight Dinners

A one-dish wonder blending tender chicken with vibrant spinach in a cheesy sauce. This Creamy Chicken and Spinach Casserole is perfect for busy weeknight dinners.
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Prep Time 15 minutes
Cook Time 35 minutes
Resting Time 10 minutes
Total Time 1 hour
Servings: 6 servings
Course: Dinner
Cuisine: American
Calories: 450
Ingredients Equipment Method Nutrition Notes

Ingredients
  

For the Creamy Sauce
  • 1 cup mayonnaise Hellmann's is a great choice for best texture.
  • 1/2 cup sour cream Provides tanginess and richness.
  • 1/2 cup Parmesan cheese Freshly grated enhances melting quality.
  • 1/2 teaspoon pepper Adds mild heat to the sauce.
  • 1 teaspoon garlic salt Imparts garlic flavor.
  • 1 teaspoon onion powder Contributes depth of flavor.
For the Chicken
  • 1.25 lb chicken Cut into 1-inch cubes. Thighs can be used for juicier option.
For the Spinach
  • 8 oz spinach Can be fresh or frozen. Squeeze out excess water if frozen.
For the Topping
  • 8 oz Monterey Jack cheese Tillamook is a recommended brand.

Equipment

  • 9x13-inch baking dish
  • cheese grater
  • Mixing bowl

Method
 

Step-by-Step Instructions
  1. Preheat your oven to 375°F (190°C) and grease a 9x13-inch baking dish.
  2. Cut chicken into 1-inch cubes and set aside.
  3. Grate 8 oz of Monterey Jack cheese and Parmesan cheese, setting aside in separate bowls.
  4. In a bowl, whisk together 1 cup of mayonnaise, 1/2 cup sour cream, 1 teaspoon garlic salt, 1 teaspoon onion powder, and 1/2 teaspoon pepper until smooth.
  5. Spread 8 oz of spinach evenly across the bottom of the baking dish.
  6. Distribute the cubed chicken over the layer of spinach.
  7. Pour the creamy sauce over the chicken, ensuring each piece is coated.
  8. Sprinkle grated Monterey Jack and Parmesan cheese over the top.
  9. Bake for 30-35 minutes until the chicken is cooked and the cheese is golden.
  10. Let the casserole rest for 5-10 minutes before serving.

Nutrition

Serving: 1servingCalories: 450kcalCarbohydrates: 10gProtein: 35gFat: 30gSaturated Fat: 10gPolyunsaturated Fat: 2gMonounsaturated Fat: 10gCholesterol: 100mgSodium: 800mgPotassium: 500mgFiber: 2gSugar: 2gVitamin A: 50IUVitamin C: 15mgCalcium: 20mgIron: 10mg

Notes

Ensure spinach is well-drained if using frozen. Cut chicken into even cubes for consistent cooking. Taste the creamy sauce before pouring over chicken. Allow casserole to rest after baking for easier serving.

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