In a large mixing bowl, combine the flaked salmon, breadcrumbs, beaten egg, mayonnaise, Dijon mustard, lemon juice, parsley, Old Bay seasoning, salt, and pepper. Mix well until all ingredients are evenly incorporated.
Shape the mixture into 8 patties.
Heat the olive oil in a frying pan over medium heat. Fry the salmon cakes for about 3-4 minutes on each side, or until golden brown and crispy.
Remove from the pan and drain on paper towels. Serve hot.