Preheat oven to 400 F, and prep your oven racks so the top rack is 6" away from the bottom of the broiler. Option to line a rimmed baking sheet with aluminum foil for easy clean-up.
Pat salmon completely dry and place on your prepared baking sheet. Lay a sheet of parchment paper over the salmon, and bake in preheated oven for 15-18 minutes. You'll know it's done once the center of your fish flakes easily and is cooked through. (Option to add veggies to your sheet pan before baking--if you do, drizzle oil over them, as well as salt and pepper, and give them a good toss to coat.)
In a small bowl, combine the parmesan, parsley, lemon juice, and garlic.
Remove salmon from the oven and discard the parchment paper. Turn your oven broiler to high. Sprinkle the parmesan evenly over the top of your salmon, and press to adhere. Broil until the cheese crisps and looks golden, about 2-3 minutes. Serve warm and enjoy!