Party Stuffed Mushrooms

2 dozen large mushrooms

1 can of drained crabmeat

3/4 to 1 cup mayonnaise

1 egg

2 Tbsp melted butter

1/2 to 1 tsp garlic salt

1 tsp minced onion

1 tsp celery salt

Break stems out of mushrooms, chop fine; add beaten egg and rest of filling.

Stuff caps and bake in pan with just a couple of spoons of water in bottom, at 375° F. for 20 to 25 minutes.