Steak San Marco - cooking recipe

Ingredients

1 1/2 pounds beef stew meat
2 (8 ounce) cans tomato sauce
1/4 cup vinegar
1 (1 ounce) package dry onion soup mix (such as Lipton(R))

Preparation

Combine beef stew meat, tomato sauce, vinegar, and onion soup mix in a slow cooker.
Cook on Low until the beef is tender, 4 to 6 hours.