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Creamy Chicken Spinach Casserole

4.6
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PREP TIME
10 min
COOKING TIME
35 min
TOTAL TIME
45 min
SERVINGS
8 servings
Dinner
Creamy Chicken Spinach Casserole
Ingredients
  • cooking spray
  • 3 tablespoons unsalted butter
  • 1 ½ cups chopped yellow onion
  • 1 clove garlic, minced
  • 2 teaspoons dried Italian seasoning
  • ¼ teaspoon crushed red pepper
  • 1 ¾ teaspoons kosher salt, divided
  • 3 tablespoons all-purpose flour
  • 2 1/2 cups whole milk
  • 4 ounces chive and onion cream cheese
  • 4 cups shredded rotisserie chicken
  • 3 cups cooked long-grain white rice
  • 2 (10-ounce) packages frozen chopped spinach, thawed and squeezed dry
  • 2 tablespoons fresh lemon juice
  • 1 teaspoon grated lemon zest
  • 8 ounces part-skim mozzarella cheese, shredded
  • 1/4 cup grated Parmesan cheese
Instructions
1
Gather all the necessary components for cooking.
2
Preheat your oven to 350 degrees Fahrenheit (175 degrees Celsius) and position the rack in the upper two-thirds of the oven. Spray a 9x13-inch baking dish with cooking spray to prevent food from sticking.
3
Heat butter in a large non-stick skillet over medium heat. Add the onion, garlic, Italian seasoning, crushed red pepper, and ¾ teaspoon of salt; cook, stirring frequently, until the onions are softened and translucent, approximately 4 minutes.
4
Combine flour with the mixture in the skillet and cook, stirring constantly, for a minute. Gradually add milk to the mixture and cook, stirring constantly, until it thickens slightly, around 3 minutes.
5
Add cream cheese to the mixture and combine with the remaining 1 teaspoon of salt; cook, stirring constantly, until fully incorporated. Remove from heat and stir in shredded chicken, cooked rice, spinach, lemon juice, and lemon zest until everything is well combined. Transfer the mixture to a prepared baking dish and spread it evenly in a layer. Sprinkle mozzarella and Parmesan cheese evenly over the top.
6
Bake the dish in the preheated oven until the cheese is melted, approximately 15 minutes. Place the dish under the broiler and cook until the cheese is browned, 2 to 3 minutes.