In a large pot of boiling salted water, cook the orzo/risoni pasta according to the package directions until al dente. Be careful not to overcook, as the orzo will continue to cook slightly as it cools down.
While the orzo/risoni is cooking, prepare the vegetables by chopping the cherry tomatoes, red onion and basil. Crumble the feta with your hands into small pieces.
Drain the cooked orzo/risoni pasta and rinse it under cold water in a colander until it's cooled. This will stop the cooking process and ensure your salad has the perfect pasta texture.
In a large salad bowl, combine the cooled orzo/risoni, oil, pesto, chopped vegetables, feta cheese, salt, pepper, and basil. Gently toss everything together until the ingredients are evenly distributed and coated in the pesto sauce.
You can serve this salad immediately, or allow it to chill in the refrigerator for an hour or more to allow the flavors to fully meld together.
Notes
Add Chicken: Toss through pieces of shredded rotisserie chicken for a quick dinner or lunch. This works very well for preparing make ahead meals as it keeps for for 3 days in the fridgeAdd Chickpeas: drain and rinse a can of chickpeas instead of or in addition to the chicken.Double Batch: Double the ingredients and get 8 servings, perfect for eating straight away and having lots of leftovers.Storage: To store cooked orzo pasta, let it cool completely, then transfer it to an airtight container and refrigerate for up to 3-5 days.