In a large bowl, combine the flaked salmon, breadcrumbs, and chopped green onions.
In a separate bowl, mix the mayonnaise, egg, Dijon mustard, and lemon juice.
Add the wet mixture to the salmon mixture and stir until well combined.
Season with salt and pepper to taste.
Form the mixture into patties, about 1/2 inch thick.
Heat olive oil in a skillet over medium heat.
Once hot, add the salmon cakes to the skillet.
Cook for about 4-5 minutes on each side, or until golden brown and crispy.
Remove from skillet and place on paper towels to drain excess oil.
Garnish with fresh herbs and serve warm.