Puffy Broiled Fish - cooking recipe

Ingredients

2 lbs flounder fillets or (16 ounce) packages frozen flounder fillets, thawed
2 tablespoons lemon juice
1 medium onion, peeled and thinly sliced
1 1/2 cups mayonnaise
1/3 cup grated parmesan cheese

Preparation

Rinse fillets under cold water; pat dry with paper towels.
Brush one side with lemon juice.
Place fillets, 1\" apart, on oven-proof baking dish.
Arrange onion slices over tops of fillets, dividing evenly.
In small bowl, combine mayonnaise and parmesan cheese.
Spread 1/4 cup mayonnaise mixture over each fillet.
Cover baking dish with foil; Broil 6\" from heat for 15 minutes.
Remove foil; continue broiling just until top is golden brown, about 5 minutes.