Peel and coarsely chop the onions and garlic. Rip the stem from the chillies and chop, removing the seeds if you prefer a milder flavour. Rinse the mange-tout and baby corn. Halve the cherry tomatoes.
Half your avocado, remove the stone and use a spoon to add the flesh into a bowl. Mash down with a fork, season with salt and pepper and set a side for serving. Chop the Chorizo into chunks.
Heat 1 tablespoon of extra virgin olive oil in a large non-stick frying pan or wok. Add the chopped onion, garlic, chilli, mange tout and baby corn. Cook for 5 minutes, stirring continuously until everything has softened. Add the chopped tomatoes and cherry tomatoes and cook for 2 minutes.
Finally, add the Chorizo and Prawns to the frying pan and add the fajita seasoning. Turn up the heat and cook for another 5 minutes, continuing to stir throughout. Microwave the rice and serve half a packet per person. Add the Prawn & Chorizo to the plate and dollop on some avocado.