1-First Step: Preheat and Prep the Dish Start by preheating your oven to 350 degrees Fahrenheit and spraying a 9×13-inch baking dish with non-stick cooking spray. This ensures even cooking and prevents sticking, making cleanup easier. Gather all your ingredients so you can move quickly, which is great for those adapting for dietary needs like using corn tortillas.

2-Second Step: Mix the Chicken Filling In a medium bowl, combine 3 cups of shredded and diced cooked chicken, 1 cup of shredded Monterey Jack cheese, ½ teaspoon garlic powder, ½ teaspoon salt, and ½ teaspoon ground black pepper. This step seasons the chicken perfectly, and you can tweak the spices if you want a milder version for kids or spice lovers. Set this aside while you prepare the sauce, ensuring the flavors meld well in your white chicken enchilada casserole.

3-Third Step: Make the Creamy Sauce In a medium saucepan, melt 3 tablespoons of butter over medium heat, then add 3 tablespoons of all-purpose flour and cook for about 1 minute until it thickens. Stir in 2 cups of chicken broth, 1 cup of sour cream, 2 ounces of cream cheese if using, and the 4-ounce can of diced green chiles, whisking until smooth. For a dairy-free twist, swap sour cream with plain Greek yogurt as needed. Bring it to a simmer, whisking continuously until it thickens, which takes just a few minutes for that signature creamy sauce in white chicken enchilada casserole.

4-Fourth Step: Prepare the Tortillas Cut 12 taco-size flour tortillas into halves or quarters to make layering easier. This helps them fit neatly in the baking dish and absorb the sauce without getting too soggy, especially if you’re planning to freeze the casserole later. If you’re using corn tortillas for a gluten-free option, this is the perfect moment to make that switch.

5-Fifth Step: Layer the Casserole Arrange 8 tortilla halves evenly in the bottom of your prepared baking dish. Add one-third of the chicken mixture over the tortillas, followed by one-third of the creamy sauce for even distribution. Repeat this layering process two more times to build those delicious cheese-filled layers, adapting as needed for low-calorie versions by using less cheese.

6-Sixth Step: Top and Bake Finish by topping the casserole with the remaining 1 cup of shredded Monterey Jack cheese. Bake it uncovered for 30 minutes or until it’s bubbly and the cheese is melted. If you want a nice browned top, switch to broil on low for a couple of minutes, but keep a close eye to avoid burning. This step really highlights the cheese in your white chicken enchilada casserole recipe with creamy sauce and cheese health benefits of chicken included.

7-Final Step: Garnish and Serve Once out of the oven, let it cool for a few minutes, then garnish with chopped fresh parsley or cilantro if you like. Serve it hot for the best texture and flavor, pairing it with sides like rice or salad. This white chicken enchilada casserole is ready to enjoy, and it’s versatile enough for meal prep or quick weeknight dinners.