Clean the pepper and cut into small pieces. Peel and dice the onion. Clean the celery and cut into slices. Cut the chorizo into thin slices. Chop the parsley.
Cook the pasta in salted water according to the instructions on the packet until al dente. Then drain.
In the meantime, fry the chorizo in hot oil, then remove. Now sauté the celery, bell peppers and onions in the frying fat. Salt and pepper. Add the chopped tomatoes and oregano. Let simmer for about 10 minutes. Fold the chorizo and parsley into the sauce and season well again.