Pre-heat oven to 350 degrees.
In a small bowl mix together softened butter with garlic, salt, pepper, minced herbs and lemon zest.
Spray a baking dish with cooking spray and place fish fillets in a single layer.
Brush butter mixture evenly on top of fish then top with lemon slices.
Bake until fish flakes easily with a fork, about 15-20 minutes.
