2poundstilapia or other thin whitefish filletsthawed if frozen
4tablespoons1/2 stick butter, melted
Red pepper flakesoptional
3/4cupgrated Parmesan Cheese
2heaping tablespoons greek yogurt
Preheat the oven to a high broil.
Rinse the fish and pat it dry. Place it in a single layer (no overlap) in an extra-large baking dish or 2 medium baking dishes. Pour the melted butter over the top and turn each fillet in the butter to coat well on both sides. Sprinkle lightly with black pepper and pepper flakes (if using).
Combine the parmesan, mayonnaise, yogurt, and dill in a bowl and stir until a paste forms. Set aside.
Put the fish on the second rack from the top of the oven and broil for 3 minutes.
Remove from the oven, turn each piece over and smear with the parmesan paste to cover the top of the fish. Broil for another 4 to 5 minutes, until it’s bubbling and golden brown on the top and flaky in the middle.