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 incorporated, being careful not to overmix.
03 - With damp hands, 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 paper towels to drain.
05 - In a small bowl, whisk together the mayonnaise, minced garlic, lemon juice, Dijon mustard, and a pinch each of salt and pepper. Adjust seasoning to taste.
06 - Arrange the warm salmon cakes on a platter and serve with a generous dollop of lemon garlic aioli alongside fresh lemon wedges.