Remove mushroom stems and finely chop; set caps aside.

In a large skillet, saute chopped mushrooms amd onions in butter for 5-7 minutes or until tender.

Remove from heat stir in crab, bread crumbs, blue cheese, parsely, and salt.

Spoon into caps.

Place on an ungreased baking sheet. Bake at 450° for 8-10 minutes or until heated through.