In a large bowl, mix the salmon, breadcrumbs, onion, bell pepper, egg, mayonnaise, Dijon mustard, garlic powder, paprika, salt, and pepper until well combined.
Form the mixture into small patties (about 2 inches in diameter).
Heat vegetable oil in a skillet over medium heat.
Fry the croquettes for 3-4 minutes per side or until golden brown and crispy.
Remove from the skillet and drain on a paper towel-lined plate.