2 - 3 lb. hamburger
1 lg. chopped onion
2 lg. cans chili beans, drained
2 cans or jars Old El Paso taco sauce, medium heat
1 med. bag nacho cheese tortilla chips
12 oz. pkg. shredded cheddar cheese

Brown hamburger and onions together; drain well. Add chili beans and taco sauce. Crumble tortilla chips and spread approximately 1 cup in bottom of 10 x 6 x 1 1/2 inch baking pan. Add hamburger mixture. Sprinkle cheese over mixture and another 1 to 1 1/2 cup chips over top. Bake at 350 degrees 30 to 40 minutes.