1. Finely dice the onion and red pepper. Mince the garlic. Roughly chop the parsley.
2. Fry the chorizo in a large wide pan over medium-high heat 2–3 mins until oil is released. Add onion and pepper, cook 4 mins. Add garlic and smoked paprika, stir 1 min.
3. Add the orzo and stir to coat. Pour in the tinned tomatoes and chicken stock. Bring to a boil, then simmer 10–12 mins, stirring occasionally, until orzo is cooked and most liquid absorbed.
4. Add the prawns, nestle into the orzo, and cook 3–4 mins until pink.
5. Season to taste. Serve scattered with fresh parsley and a squeeze of lime.