Non-fishlover`s bake

1/2 cup skim milk
2 tablespoons lemon juice
4 firm white fish fillets
1/4 teaspoon black pepper
1/4 cup chopped onions
3/4 cup low-fat sour cream
2 tablespoons chopped fresh parsley
2 tablespoons chopped pimentos
1 teaspoon Worcestershire sauce
2 dashes Tabasco sauce
1/4 cup grated Parmesan cheese
1 pinch paprika

Soak fish in milk/lemon juice for at least 30 minutes. Place fish fillets in microwave casserole, thickest portions to the outside. Cover and microwave 3 minutes per pound at 100% power or until fish flakes. Drain liquid that remains. In 2-cup microwave measure, cook onion, covered, for 1 minute at 100% power. Stir in sour cream, parsley, pimiento, Worcestershire sauce and Tabasco sauce. Top fish with sour cream sauce. Heat at 50% power for 8-15 minutes until very hot, but not boiling. Sprinkle with Parmesan and paprika.