Store in an airtight container in the refrigerator for up to four days. Cook the orzo until just al dente for the best texture. For gluten-free options, substitute orzo with gluten-free pasta. If the salad seems bland after chilling, mix in an additional tablespoon of lemon juice or pesto. If the salad feels dry after refrigeration, add a tablespoon of olive oil or a splash of lemon juice to restore moisture. For those unable to find fresh basil, a high-quality store-bought pesto can effectively enrich your dish.