- 1 12-ounce can solid white tuna packed in water, drained well
- 1/2 cup finely chopped green onions
- 1/3 cup (packed) fresh breadcrumbs
- 1/4 cup yellow cornmeal
- 8 tablespoons mayonnaise
- 1 large egg, beaten to blend
- 1 1/2 tablespoons Dijon mustard
- 4 slices rye, whole wheat or sourdough bread, toasted
- 4 small lettuce leaves
- 4 large slices tomato
- 1 tablespoon olive oil
- Place tuna in large bowl; break up finely with fork. Mix in green onions, breadcrumbs, cornmeal, 4 tablespoons mayonnaise, egg and mustard. Season with salt and pepper. Shape mixture into four 3/4-inch-thick patties.
- Arrange bread on 4 plates. Spread each slice with 1 tablespoon mayonnaise; then top each with lettuce and tomato.
- Heat oil in heavy large skillet over medium-high heat. Add tuna patties and cook until firm to touch and heated through, about 4 minutes per side. Place tuna on tomato slices and serve.