Preheat oven to 350º F.
Melt butter in 12-inch skillet over medium heat. Add celery and onion; cook 5 minutes. Add all mushrooms; cook 5 minutes longer or until vegetables are tender, stirring occasionally.
Remove vegetables to large bowl. Toss with bread cubes, egg, chicken broth, TABASCO® Sauce and salt. Place in 12-inch by 8-inch greased baking dish; cover with foil.
Bake stuffing 20 minutes or until heated through. For a crusty top, uncover during last 5 minutes.
Note: Stuffing can be used to stuff a large chicken or Cornish game hens.
Makes about 5 cups.