The combination of prawns, feta, tomatoes and pasta is one that I love. I return to it time and again, for easy one-pot suppers. Orzo is the little pasta that comes in the shape of rice. It’s easy to eat a lot of and widely available. If you start with prawns in their shell then keep a few heads on, for the look. The marinated feta is lovely dotted over salads, so I tend to make a batch to keep in the fridge for up to a week.