Wash the meat and simmer in a pot with boiling, slightly salted water for 12-15 minutes. Remove the meat and put aside 4 tablespoons of Garsud.
For the guacamole avocados, cut the avocados in half, remove the core and the flesh from the skin. Coarsely mash the fruit flesh and lime juice in a bowl with a fork, season with salt and pepper.
For the tacos, clean and wash the peppers and cut them into fine strips. Peel and halve the onions and also cut them into fine strips. Heat 1 tablespoon of oil in a large frying pan. Fry the peppers and onions in it. Pluck the meat with two forks, add and fry briefly. Season with salt and pepper. Mix the tomato paste with 4 tbsp. Sriracha and the cooking stock, add to the pan and mix everything well.
Place 5 tacos on the work surface. Spread the meat-pepper-mix on top, place the remaining tacos on top and press down gently. Heat the remaining oil in portions in a pan. Fry the tacos in portions for about 4 minutes while turning. Coarsely crumble the cheese. Wash the coriander, shake dry and pluck the leaves. Arrange the tacos, sprinkle with cheese and coriander. Sprinkle with the remaining sriracha. Serve with guacamole.