01 - Preheat oven to 350°F. Place salmon fillets on a parchment-lined baking sheet and season lightly with salt and pepper. Bake for 12 to 15 minutes until just cooked through. Let cool slightly, then flake into large pieces using a fork.
02 - In a large mixing bowl, combine the flaked salmon, panko breadcrumbs, beaten eggs, chopped parsley, lemon zest, lemon juice, minced garlic, diced red onion, Dijon mustard, salt, and black pepper. Fold gently until evenly combined without overworking the mixture.
03 - With damp hands, portion and shape the mixture into 8 small cakes or 4 larger patties, pressing firmly so they hold together.
04 - Heat olive oil in a large non-stick skillet over medium heat. Carefully add the salmon cakes and cook for 3 to 4 minutes per side until golden brown and heated through. Transfer to a plate lined with paper towels to drain.
05 - In a small bowl, whisk together the mayonnaise, finely minced garlic, lemon juice, and Dijon mustard. Season with salt and pepper to taste. Refrigerate until ready to serve.
06 - Arrange the warm salmon cakes on a serving platter and top each with a generous dollop of lemon garlic aioli. Garnish with lemon wedges on the side.