Bake at 350 degrees for 45 to 50 minutes or until biscuit pieces are golden brown. Spread tenderloins open. Place one cut size up. Season with salt and pepper and spread with stuffing. Place on rack in shallow roasting pan.
Arrange bacon slices on meat.
Bake, uncovered, in 350 degree oven until done. 4 to 6 servings. Cook and stir onion and celery in margarine until onion is tender. Stir in about 1 cup of the bread cubes.