
Make lemon garlic aioli according to the instructions here.
Preheat oven to 450 degrees F (232 degrees C).
Pat salmon fillets dry with paper towels. Season both sides sea salt and black pepper. Place them skin-side down onto a baking sheet (you can line it for easy cleanup if you'd like).
Spread mayo (or aioli) over the salmon. Sprinkle with parmesan and top with lemon slices.
Bake for 8-10 minutes, depending on the thickness of the fish, until it flakes easily with a fork. Sprinkle with fresh parsley before serving.