Unstuffed Cabbage Soup
1 (15 ounce) can Italian-style tomato sauce 1 (16 ounce) can Italian-style diced tomatoes 1 head cabbage, cored and cut into wedges 1 medium onion, diced 1 pound lean ground beef 1 teaspoon dried tarragon 1 teaspoon red pepper flakes, or to taste 1 teaspoon Worcestershire sauce 2 large cloves garlic, minced 3 carrots, peeled and diced 3 smoked sausage links, sliced 6 cups beef broth salt and ground black pepper to taste ½ cup diced green bell pepper ½ cup diced red bell pepper ⅓ cup apple cider vinegar ⅓ cup brown sugar