In a mixing bowl, combine the diced salmon, breadcrumbs, beaten egg, dill, lemon juice, garlic powder, salt, and pepper. Mix until well combined.

Form the mixture into 4 equal patties.

Preheat the grill to medium-high heat.

Grill the salmon patties for about 4-5 minutes on each side or until cooked through and slightly charred.

If using cheese, add a slice on top of each patty during the last minute of cooking to melt.

Toast the burger buns on the grill.

Spread mayonnaise or tartar sauce on the bottom bun, add lettuce, the salmon patty, tomato slices, and top with the other half of the bun.