Hawaiian Tuna Sandwich

Details

Ingredients

• 4 hamburger buns, split
• 2 tablespoons butter
• 1 (5 ounce) can tuna chunks in olive oil
• 1 tablespoon lemon juice
• salt and freshly ground black pepper to taste
• 1 dash chili powder
• 1 cup shredded lettuce
• 1 cup shredded mozzarella cheese
• 4 canned pineapple rings