In a large mixing bowl, combine the chopped salmon, breadcrumbs, eggs, lemon juice, dill, garlic powder, paprika, salt, and pepper. Mix until well combined.
Form the mixture into 4 equal-sized patties.
Heat olive oil in a large skillet over medium heat.
Place the salmon patties in the skillet and cook for about 4-5 minutes on each side, or until golden brown and cooked through.
Spread mayonnaise on the bottom half of each toasted bun (if using).
Place a salmon burger on each bun, then top with lettuce, tomato, and the top half of the bun.