MAKE the salmon burgers: In a food processor, pulse the salmon until finely minced, then transfer to a large bowl. Add 1 cup of the panko, the mayonnaise, parsley, dill, capers, salt, Worcestershire, lemon zest, pepper and garlic. Using your hands, mix until incorporated, then form into six 4-ounce patties. Coat the patties in the remaining 1 cup of panko bread crumbs.