Shrimp Newburg

1 pound shrimp, cooked, deveined
1 (4 ounce can mushrooms
3 hard-boiled eggs, peeled and chopped
1/2 cup Parmesan cheese
4 tablespoons butter
1/2 onion, chopped
1 clove garlic, chopped
6 tablespoons flour
3 cups milk
4 tablespoons dry sherry
Worcestershire sauce
Salt and pepper
Tabasco sauce

Preheat oven to 375 degrees F.

Melt butter and then saut