Step 1

Preheat the oven to 325°F, and butter a 9 x 13-inch baking dish. Set aside.

Step 2

In a small bowl, whisk together the melted butter, lemon juice, garlic, onion powder, salt, and pepper. Set aside.

Step 3

Pat the fillets dry with a paper towel, then place them in the prepared baking dish. Pour the butter mixture over the fillets. Sprinkle smoked paprika over the top.

Step 4

Bake for 15 to 20 minutes (may need a few more minutes for thick fillets), or until the flounder flakes easily with a fork.

Step 5

Remove from the oven, garnish with fresh parsley and lemon. Serve hot with a salad or steamed veggies.