2 (6 1/2 oz.) cans tuna, drained & flaked
1 c. shredded cheese
1/3 c. chopped onion
1/4 c. sweet pickle relish
2 tsp. mustard
1 (8 1/2 oz.) can cut green beans, drained
3/4 c. salad dressing
8-10 hamburger buns
Butter

Combine all ingredients but butter and buns. Spread buns with butter and fill with tuna mixture. Wrap each bun individually with foil. Bake at 375 degrees for 20 minutes. Burgers can be made ahead of time, wrapped and refrigerated until ready to use. Can also be frozen. Defrost one hour before baking.