Preheat oven to 350 degrees. Gather ingredients.
In a large skillet, cook ground beef and onions until cooked through and onions become transparent. Discard grease if needed.
Stir in chiles, olives, chili, chili beans, corn, salsa, and taco seasoning. Bring to a simmer for about 10 minutes, stirring often.
Crush Fritos and spread half of them evenly in a 9x13 deep baking dish. Add chili mixture and top with remaining crushed Fritos.
Bake for 25 minutes. Add cheese and bake for an additional 10 minutes or until cheese is melted.
