Clean, wash and cut the chilli pepper into rings, removing the white seeds. Heat the oil in a small pot. Fry the chillies for 1-2 minutes. Prepare noodles in boiling salted water according to package instructions
Clean and wash the spinach, pluck into bite-sized pieces and drain. Radishes clean, wash, dab dry, halve and cut into slices. Clean and wash spring onions and cut them diagonally into rings. Peel garlic. Halve avocado, remove core.
Remove the flesh from the skin, cut into pieces, finely puree with garlic and lemon juice. Mix avocado puree, chilli oil and yoghurt. Season to taste with lemon, salt, pepper and sugar. Drain the pasta, rinse with cold water and drain. Mix radish, spinach, noodles, spring onions and dressing in a bowl, sprinkle with pepper