Put the rice in plenty of boiling salted water, cover and let it swell at low heat for about 20 minutes. Drain. In the meantime cut the sausages into slices. Peel and chop the onion.
Wash parsley, dab dry, pluck leaves from the stalks and, except for a few for garnishing, chop. Heat the fat. Fry the sausages in it. Add Mexican chili and heat. Season to taste with salt and pepper.
Serve the rice and chilli pepper sprinkled with diced onion and parsley. Garnish with parsley leaves.