1 (3 lb.) beef tenderloin
1 sm. onion, chopped
1 (14 oz.) can mushrooms
1/4 c. butter
1 1/2 c. soft bread crumbs
1/2 c. diced celery
4 bacon slices
Salt and pepper
Hot water

Have tenderloin split and flattened at the store. Lightly brown onion and mushrooms in butter. Add bread crumbs, celery and lots of water to moisten; season. Spread over half the meat. Bring second half over first half and fasten edges together. Season. Place bacon slices over top. Roast uncovered at 350 degrees for 1 hour.