For the avocado cream, crumble the cheese finely, add sour cream and mix well. Halve the avocados, remove the stone and peel the skin. Cut the flesh into cubes, place in a tall mixing bowl, add lemon juice and puree finely. Season to taste with salt and pepper. Loosely fold in the feta and sour cream mixture
Shrimps, peel and remove the intestines. Wash the shrimps and dab them dry. Peel garlic and dice very finely. Clean, wash and cut the chilli pepper into rings
Cook the pasta in boiling salted water according to the instructions on the packet. In the meantime, heat the oil in a large pan and fry the prawns for 3-4 minutes. Add garlic and chilli just before the end of the frying time. Season with salt and pepper
Drain the pasta, let it drain. Put about 3/4 of the avocado cream into the pasta pot, mix with the pasta and prawns. Arrange in bowls, spread the rest of the cream on top. Garnish with chilli pepper if desired.