Beef Enchilada Casserole

1 lb. lean ground beef

1/2 cup chopped onion

1 can (10 oz.) red enchilada sauce

1 can cream of mushroom soup

1 can cream of chicken soup

1 can (4 oz.) chopped green chiles

1 cup milk

1 small clove garlic, minced

1 pkg. (7 oz.) tortilla chips, coarsely crumbled

8 oz. grated Cheddar or Mexican blend cheese

1 can (4 oz.) chopped black olives

1 lb. lean ground beef

1/2 cup chopped onion

1 can (10 oz.) red enchilada sauce

1 can cream of mushroom soup

1 can cream of chicken soup

1 can (4 oz.) chopped green chiles

1 cup milk

1 small clove garlic, minced

1 pkg. (7 oz.) tortilla chips, coarsely crumbled

8 oz. grated Cheddar or Mexican blend cheese

1 can (4 oz.) chopped black olives