Stir together garlic powder, salt, pepper, and paprika in a small bowl.
Season top of salmon (not skin side) with seasoning mixture. Set aside.
Heat 2 tablespoons butter in a large skillet over medium-high heat. Once butter melts, add salmon skin side down. Cook 3 minutes.
Turn heat down to medium. Flip the salmon. Top with remaining butter, and add lemon slices to skillet. Cook for an additional 3-4 minutes.
Garnish with fresh parsley or dill. Serve with a lemon wedge or squeeze additional lemon juice over salmon before serving.
The calories shown are based on the recipe serving 6 people, with 1 serving being 1 piece of salmon. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate. **We are not dietitians and recommend you seek a nutritionist for exact nutritional information.**