Preheat the oven to 425ºF. Prepare a baking sheet by lining with sheets of foil and spraying with cooking spray. The foil should overlap the sides 4-5 inches.
Combine the salt, pepper and garlic powder in a bowl and mix.
Place the salmon on the foil and drizzle with olive oil. Liberally sprinkle the salmon with the spices. You might not use all of the spice mixture, just make sure the salmon is evenly covered.
Place slices of lemon on top of the salmon.
Pull up the sides of the foil up and pinch them together then roll down a few times to secure. Do not make the foil tight on top of the salmon, there should be a little loose space above the salmon.
Place the salmon in the oven and cook for 20-25 minutes until it reaches 135º F or until the salmon flakes easily with a fork.
Sprinkle with fresh parsley if you have it, or serve without with lemon wedges.
Notes
nutrition facts are just an estimate
store any left over salmon in an air tight container in the refrigerator for up to 3 days