I found this over at Jam Hands but I noticed she found the recipe from another blogger, who found it from another blogger so I really don't know whose recipe it is but I can tell you one thing it is VERY good!
Mexican Dorito Casserole
2 c. shredded cooked chicken
1 c. shredded cheese
1 can cream of chicken soup
1/2 cup milk
1/2 cup sour cream
1 can Ro-tel tomatoes (canned tomatoes with jalepenos-mild)
1/2 packet taco seasoning (or more- to taste)
Bag of doritos
1. Pre-heat oven to 350-f degrees.
2. In a mixing bowl, combine all ingredients except doritos.
3. In a greased 2 qt baking dish, put a layer of crushed doritos (about 2 cups), then a layer of the chicken mixture. Repeat once more, ending with a layer of chicken mixture. Top with more shredded cheese, cover, and bake for 30-35 minutes, till bubbling hot