Heat some oil in a large frying pan, fry the diced onion and celery over a medium-high heat for a few minutes until it softens.
Add the chorizo, cook for one minute, then add the garlic and cook for a further minute.
Add the spice mix and stir well. Add the diced red pepper and fry for one more minute.
Add the rice, chopped tomatoes, chicken stock and chicken. Stir well.
Cover the pan with a lid, or with tin foil and simmer over a low-medium heat for 20-25 minutes until the rice has cooked and most of the liquid has been absorbed.
For the last few minutes, add the king prawns, frozen peas and sliced spring onions, stir well.
Once the prawns are cooked and all of the liquid has been absorbed, it is ready to serve.
Enjoy!