1 lb. hamburger
1 med. onion
1 sm. bottle catsup
1/2 c. green olives
1 sm. can chili beans
4 oz. pkg. shredded cheddar cheese
1 pkg. taco seasoning mix (mild)

In a large skillet, brown hamburger and diced onion. Pour into a small crock pot. Slice green olives and mash drained chili beans. Add to hamburger mixture. Stir in catsup and taco seasoning mix. Add cheddar cheese. Warm in crock pot for about 2 hours on low. Serve with Tostados.