4 chicken breasts, cooked & diced
1 onion, chopped
1 can cream of mushroom soup (undiluted)
1 can cream of chicken soup (undiluted)
Doritos
Cheddar cheese, grated

Combine the first 4 ingredients. Line baking dish with Doritos. Pour mixture over Doritos and top with grated cheese. Bake at 325 degrees for 40 minutes.