1/2 lb. chopped ham
1/2 lb. chopped mild Cheddar cheese
1/3 c. grated onion
2 chopped eggs
3 tbsp. salad dressing
Sm. amount catsup

Mix ingredients together. Spread on hamburger buns. Brush top of buns with butter. Wrap in aluminum foil. Bake 15-20 minutes at 400 degrees.