Recipes: Tomato noodle soup

Preparation:  Preparation time: 5 min Cooking time: 20 min Serving: 4 Ingredients: ●     1 tablespoon vegetable oil ●     2 tablespoons green onion, chopped ●     3 tomatoes, chopped (or 2 16-ounce cans tomatoes) ●     8 cups pork stock (or chicken stock or water) ●     200 grams (7 ounces) udon noodles, dried...