1/4 c. mayonnaise
1 can tuna, drained
3 to 4 oz. Swiss cheese, shredded
2 tbsp. onions, minced
1/2 tsp. salt
1 tsp. lemon juice
hamburger/sandwich buns, buttered

Spoon mayonnaise into a bowl and blend in tuna, cheese, onions, salt and lemon pepper. Spoon mixture onto bottom half of bun. Cover with top half and wrap each sandwich separately in foil. Place on baking sheet and bake at 350°F for 20 minutes. Remove from oven and carefully unwrap before serving. Serve immediately.