In a 4-qt. Dutch oven, cook bacon until crisp. Remove to a paper towel to drain; reserve drippings in pan. Crumble bacon and set aside. Cook venison and onions in drippings until meat is lightly browned. Add 3 cups water, tomato sauce, soup mix, salt, bay leaf and Italian seasoning; bring to a boil. Reduce heat; cover and simmer for 1-1/2 hours or until meat is almost tender.
Add the carrots, potatoes and celery; return to a boil. Reduce heat; cover and simmer 30-45 minutes or until meat and vegetables are tender.
Combine flour and remaining water until smooth; stir into stew. Bring to a boil; cook and stir until slightly thickened. Stir in bacon. Discard bay leaf. Serve with cooked noodles.
Editor's Note: If desired, beef stew meat or pork can be used in place of the venison.