Drain the canned salmon and flake it into a medium-sized mixing bowl with a fork. If using salmon with skin or bones, mash them in or remove them as preferred.
Add the egg, mayonnaise, lemon juice, Dijon mustard, Worcestershire sauce, panko breadcrumbs, scallions, dill, parsley, garlic powder, salt, and pepper. Mix just until combined—do not overmix.
Form the mixture into 6 equal-sized patties, about 1/2 inch thick.
Heat the olive oil in a skillet over medium heat. Cook the patties in batches, about 3–4 minutes per side, until golden brown and crispy. Add more oil if needed between batches.
Serve warm with your favorite dipping sauce or a squeeze of lemon.