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Cheesy Doritos Chicken Casserole

Cheesy Doritos Chicken Casserole with shredded chicken, Rotel, sweet corn, and a creamy sour-cream base topped with crunchy Nacho Cheese Doritos. Baked at 350°F until the cheese melts and the chips turn crisp for easy, cheesy comfort with every scoop.
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Prep Time 15 minutes
Cook Time 32 minutes
Total Time 47 minutes
Servings: 8 servings
Course: Dinner
Cuisine: American
Calories: 590
Ingredients Equipment Method Notes

Ingredients
  

Cheesy Doritos Chicken Casserole
  • 4 cup cooked shredded chicken about 2 lb cooked chicken
  • 1 can (10.5-ounce) cream of chicken soup
  • 1 cup sour cream
  • 1 can (10-ounce) Rotel diced tomatoes with green chilies, drained
  • 1 cup canned corn, drained
  • 1 tsp garlic powder
  • 1 tsp onion powder
  • 1 tsp taco seasoning
  • 2.5 cup shredded cheddar cheese, divided divided, about 2 1/2 cups total
  • 1 bag (9.25-ounce) Nacho Cheese Doritos, lightly crushed save some for topping
  • 2 tbsp chopped green onions
  • 1 fresh cilantro (optional) for garnish

Equipment

  • 1 sheet pan

Method
 

Prep and combine
  1. Preheat the oven to 350°F (175°C) and prepare a 9×13-inch baking dish with grease so the casserole releases easily.
  2. In a large bowl, combine the cooked shredded chicken, cream of chicken soup, sour cream, Rotel tomatoes, corn, garlic powder, onion powder, taco seasoning, and 2 cups of the cheddar cheese until evenly mixed.
Assemble and bake
  1. Spread half of the lightly crushed Doritos in the bottom of the baking dish to create a crunchy first layer.
  2. Spoon the chicken mixture evenly over the chips so the casserole bakes in a uniform layer.
  3. Sprinkle the remaining cheddar cheese over the casserole to help form a melted, cohesive top.
  4. Bake uncovered for 25 minutes at 350°F (175°C) until the mixture is hot and bubbling around the edges, with visible melting cheese.
  5. Remove from the oven and top with the remaining crushed Doritos to add crunch before the final bake.
  6. Bake for another 5–7 minutes at 350°F (175°C) until the cheese is fully melted and the chips look toasted and crisp.
Finish and serve
  1. Garnish with chopped green onions and optional fresh cilantro before serving for bright, fresh contrast.

Notes

To keep the Doritos extra crisp, bake uncovered the whole time and avoid covering with foil after adding the final Doritos. Refrigerate leftovers in an airtight container for up to 3 days. For freezer meals, assemble fully (without baking), cover tightly, and freeze up to 2 months; thaw in the fridge overnight before baking. Swap for dairy-free: use dairy-free cream of chicken soup, dairy-free sour cream, and a dairy-free cheddar-style cheese blend.