Preheat the oven to 400 degrees Fahrenheit.
In a small bowl, whisk together minced garlic, black pepper, lemon juice, melted butter or olive oil, salt and lemon zest.
Add the salmon fillets to a cast iron pan or baking sheet and pour the sauce on top. Take a brush to spread the mixture on evenly. It will pool around the sides of the salmon which is ok.
Take 1 extra lemon and slice into thin strips. Place on top of each fillet and top with additional black pepper, lemon zest or salt if desired.
Bake for 12-18 minutes, depending on the thickness of the salmon and your preference of "doneness." I like salmon well done and my fillets were somewhat thick, so I did 18 minutes, but check it at 12. It should flake easily and peel right off the skin and be an even color throughout.
Add an extra squeeze of lemon juice and serve with quinoa, rice, cauliflower rice or any green veggies such as steamed broccoli or asparagus. Enjoy!