In food processor, pulse all ingredients, except for olive oil, until coarsely chopped; form into 4 patties. Cook in 2 tablespoons olive oil in a large nonstick skillet over medium until opaque throughout, 6 to 7 minutes per side. Serve with soft buns, mayonnaise and lettuce.
I used 14oz. of salmon and it worked fine. This could easily make 5 patties instead of 4.