Drain the canned salmon thoroughly and flake it into a large mixing bowl.
Add the breadcrumbs, finely chopped onion, bell pepper, eggs, Dijon mustard, lemon juice, garlic powder, salt, and black pepper into the bowl. Mix until all ingredients are combined.
Shape the mixture into patties around 2-3 inches in diameter.
In a skillet, heat 2 tablespoons of olive oil over medium-high heat until shimmering.
Fry the patties in the hot skillet for about 4-5 minutes on each side until golden brown.
Transfer cooked patties to a paper towel-lined plate to drain excess oil and serve warm.
Notes
For best results, use fresh ingredients and avoid overcrowding the skillet while frying.