Rotel Chicken

4 boneless, skinless chicken breasts
1 can Cream of Mushroom Soup
1 can Cream of Chicken Soup
1 can Rotel tomatoes
3/4 block of Velveeta, cubed
1 stick butter or margarine
1 bag of original Doritos

Boil chicken breasts.  Chop.  In a microwave-safe bowl, combine soups, tomatoes, cheese, and butter.  Cover and cook on high in the microwave for 8-10 minutes, stirring occasionally, until melted.  (If cooking on the stovetop, stir constantly until all is melted and combined).  Spray a 9x13 glass pan and cover the bottom with a layer of Doritos.  Add chicken to mixture and pour over the Doritos.  Bake in a 375 degree oven for about 30 minutes, or until cheese is bubbling.  Add another layer of Doritos to the top and cook for another 5 to 8 minutes.