Follow these simple steps to create your Garlic Butter Salmon & Spinach:

1. Prepare Ingredients: Gather all the ingredients and ensure the salmon fillets are thawed if previously frozen.
2. Season the Salmon: Sprinkle salt and pepper on both sides of each salmon fillet.
3. Melt Butter: In a large skillet, melt 2 tablespoons of butter over medium heat.
4. Cook Salmon: Once the butter has melted, add the salmon fillets skin-side down. Cook for about 4-5 minutes on each side until the salmon is golden brown and cooked through.
5. Remove Salmon: Carefully remove the salmon from the skillet and set aside on a plate.
6. Sauté Garlic: In the same skillet, add the remaining 2 tablespoons of butter and minced garlic. Sauté for about 1-2 minutes until fragrant but not burned.
7. Add Spinach: Add the fresh spinach to the skillet. Stir it in and cook until wilted, about 2-3 minutes.
8. Combine: Return the salmon to the skillet with the spinach, drizzle lemon juice over it, and make sure everything is well-coated.
9. Final Seasoning: Taste and adjust seasoning with additional salt or pepper as needed.
10. Serve: Remove from heat and, if desired, sprinkle with chopped parsley for garnish.

Following these steps will ensure that your Garlic Butter Salmon & Spinach turns out perfectly every time!