Briefly fry chopped leek in oil.
Add chopped tomatoes, sugar, Vegeta Natur and saute together around 15 minutes.
In the meantime, fry sliced baby beef in oil in another frying pan. Sprinkle with 1 teaspoon Vegeta Natur and fry around 5 minutes.
Mix veal with sauteed tomato mixture, add chopped caraway, coriander, chili pepper, crushed garlic and parsley, and stir well.
Add tomato juice and cooked beans.
Sautee together over medium heat around 3-4 minutes.
Spread prepared meat and vegetable mixture on tortillas, fold and serve.
Tortillas can be preheated in the microwave before filling.