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Best Spinach Chicken Casserole Recipe

4.6 from 89 reviews

This Best Spinach Chicken Casserole is a creamy, cheesy baked dish combining tender chicken breasts layered with fresh spinach and topped with Monterey Jack cheese. The rich sauce made from mayo, sour cream, and Parmesan enhances the flavors, making it an easy, comforting meal perfect for weeknight dinners.

Ingredients

Scale

Chicken and Vegetables

  • 1 pound chicken breast halves (two pieces, sliced in halves)
  • 8 ounces fresh spinach

Dairy and Sauce

  • 8 ounces shredded Monterey Jack cheese
  • 1/2 cup mayonnaise
  • 1/2 cup sour cream
  • 1/2 cup grated Parmesan cheese

Seasonings

  • 1/2 teaspoon black pepper
  • 1 teaspoon garlic salt

Instructions

  1. Preheat and Prepare the Baking Dish: Preheat your oven to 500°F. Lightly spray a 13 x 9-inch baking dish with cooking spray to prevent sticking and set it aside.
  2. Prepare the Creamy Sauce: In a mixing bowl, combine mayonnaise, sour cream, grated Parmesan cheese, black pepper, and garlic salt until smooth and well blended.
  3. Assemble the Casserole: Evenly spread fresh spinach across the bottom of the prepared baking dish. Place the uncooked chicken breast halves on top of the spinach layer. Pour the creamy sauce mixture evenly over the chicken and spinach, spreading it out using a spatula to cover all areas.
  4. Add Cheese and Bake: Sprinkle the shredded Monterey Jack cheese evenly over the top of the casserole. Place the dish on the bottom rack of the preheated oven and bake for 20-25 minutes, or until the spinach has significantly shrunk, the chicken is thoroughly cooked, and the cheese is melted and slightly bubbly.
  5. Serve and Enjoy: Remove the casserole carefully from the oven and let it rest for a few minutes to allow the flavors to meld. Serve hot and enjoy the rich, creamy spinach chicken casserole.

Notes

  • Ensure the chicken is fully cooked by checking that the internal temperature reaches 165°F before serving.
  • For a lower-fat version, substitute light mayonnaise and sour cream.
  • You can add a pinch of red pepper flakes for a bit of heat.
  • Consider using fresh herbs like parsley or basil as garnish for added flavor and color.
  • If you prefer, shredded mozzarella cheese can be used in place of Monterey Jack for a milder taste.

Keywords: spinach chicken casserole, creamy chicken casserole, baked chicken dish, Monterey Jack cheese casserole, easy chicken dinner