1/2 lb. diced ham
1 c. shredded Cheddar cheese
1/2 c. sliced olives (optional)
1/2 c. catsup
3 tbsp. chopped onion
2 tbsp. mayonnaise
8 hot dog buns

Combine first 6 ingredients; mix well. Spoon mixture into buns. Wrap each bun separately in foil. Cook on grill for 20 minutes or until cheese melts.