Drain the canned salmon. Place it in a bowl and flake it with a fork.
To the bowl, add the egg, green onion, mayonnaise, Worcestershire sauce, chopped parsley, Old Bay, garlic powder, salt, pepper, and ¼ cup breadcrumbs. Mix until a dough forms.
Place the 3 tablespoons breadrcrumbs on a plate.
Form the dough into 8 patties (about ¼ cup each) or 10 patties (3 tablespoons each), then pat them into a flat disc. Dip both sides into the plate of breadcrumbs.
Heat a large skillet over medium heat. Add enough neutral oil to coat the bottom by about 1/8-inch. Fry the patties in batches that fit the skillet, about 2 minutes per side until golden. (Replace the oil after 2 batches as some breadcrumbs are released into the oil and start to brown while cooking.)
Enjoy immediately with tartar or remoulade sauce. Leftovers last up to 3 days refrigerated.