2 (6 1/8-ounce) cans albacore tuna in water, drained and flaked
1/2 cup dry breadcrumbs, divided
1/4 cup chopped green onions
Vegetable cooking spray
1/4 cup nonfat mayonnaise
4 (1 1/2-ounce) hamburger buns, split
4 lettuce leaves
4 slices tomato
4 slices sweet onion
How to Make It
Combine first 3 ingredients in a medium bowl, and stir well. Add tuna, 1/4 cup breadcrumbs, and green onions; stir well. Divide mixture into 4 equal portions, shaping each into a 4-inch patty. Press the remaining breadcrumbs evenly onto both sides of patties.
Coat a large nonstick skillet with cooking spray; place over medium-high heat until hot. Add patties; cover and cook 3 minutes. Carefully turn patties over; cook, uncovered, for 3 minutes or until patties are golden.
Spread mayonnaise evenly on the bun tops and bottoms. Place lettuce, tomato, onion, and patties on bottom halves of buns; place tops on sandwiches.