Mexican Casserole

Brown hamburg with onion. Add chili con carne. Cook until hot. In a casserole bowl put Fritos on the bottom and then half the hamburg mixture, sour cream, and ½ of the enchilada sauce and grated cheese. Repeat the same way with the rest of the ingredients. Cover and cook in the oven at 350 degrees for 30 minutes or microwave on high for about 5 to 8 minutes. When it is done, put on plate with more sour cream and lettuce and tomatoes and more cheese if desired.