4 5-ounce cans solid white tuna, drained
Freshly ground black pepper
1/2 cup Italian seasoned breadcrumbs
2 large eggs lightly beaten
6 hamburger buns
1/4 cup finely chopped onion
6 leaves green lettuce
1/4 cup finely chopped celery
12 slices tomato
1 tablespoon chopped flat-leaf parsley
6 slices Cheddar cheese
In a large bowl, combine tuna, breadcrumbs, eggs, onion, celery, parsley, and pepper. Divide the mixture into 6 equal portions and form into patties. Refrigerate for at least 30 minutes.
Heat a large skillet over medium-high heat. Spray with cooking spray and brown tuna patties, about 3 minutes per side. Transfer to a preheated 350 degree oven until completely warmed through, about 10-15 minutes. Top with slice of cheese, at last minute.
To assemble, layer lettuce leaf and tomato slices on bottom bun. Top with tuna burger and top bun.