1/2 lb. crabmeat or lobster, clams, oysters or mussels
18 lg. fresh mushrooms
1 sm. chopped onion
1/4 c. mayonnaise
1/2 c. chopped celery
1 hard-boiled egg, chopped
Salt & pepper to taste

Remove stems from mushrooms and chop. Mix the stems with above ingredients and stuff the mixture into the mushroom caps. Bake in a lightly oiled pan for 10 minutes at 300 degrees. Serve hot or cold.