Clean and remove heads and shells from shrimp, leaving tails. Split shrimp and open flat.
Saute onion and pepper in 4 tablespoons butter until soft but not brown. Add the crab meat, dry mustard, Worcestershire sauce, salt and mayonnaise. Set aside.
Make white sauce using remaining 2 tablespoons butter, flour and milk. Add to crab meat mixture along with the sherry. Mix well, stuff the split shrimp with the crab meat and dot with extra butter. Sprinkle lightly with Parmesan cheese and paprika.
Arrange in shallow baking pan and bake at 350 degrees F. for 25-30 minutes.
» Yield : 4 to 6 servings