Chicken-Corn Chip Casserole

2 boned chicken breasts
1 bag Doritos?
2 cups shredded Cheddar cheese
1/2 cup chopped onions
1 can cream of chicken soup
2 to 3 jalape?o peppers
1 pint sour cream

Crush Doritos? and put into the bottom of a 9-inch square pan. Chop the raw breasts; mix well with sour cream, soup, peppers and onions. Put on top of the Doritos?. Cover with cheese. Bake at 375 degrees F for 30 to 45 minutes, until casserole is bubbly.