Beef with vinegar

3/4 pound beef, round steak 1/2 teaspoon meat tenderizer * 3 tablespoons vegetable oil 3 tablespoons vinegar 1/2 teaspoon salt 1/4 teaspoon cumin ground * 1/4[...]

2 tablespoons olive oil 1 1/2 lbs beef stew meat 10 cups water 4 large carrots , peeled and diced 4 stalks celery , diced 1 onion , chopped 2 cups frozen[...]