Taco Casserole

2 Pounds lean ground beef
1 Large green pepper, chopped
1 Can Mexican chili beans
1 Teaspoon chili pepper
1-12 ounce package baked cheese corn chips
1 Small onion, chopped
1 cup light sour cream
1 Can of diced tomatoes
1 Can of tomato sauce
1 Cup grated lowfat cheddar cheese
Brown ground beef with onion and green pepper. Drain excess fat. Add sour cream, beans, tomatoes and sauce. Pour meat mixture into a casserole dish. Slightly crush chips and sprinkle on top of the meat mixture. Sprinkle cheese on top of the chips. Bake in a 325 degree oven for about 30-35 minutes. Serves 8.