01 - Cook orzo pasta according to package instructions in salted boiling water until al dente. Drain and rinse under cold water to stop the cooking process. Let cool completely.
02 - In a large bowl, combine the cooled orzo, cherry tomatoes, mozzarella, and basil.
03 - In a small bowl or jar, whisk together olive oil, balsamic vinegar, Dijon mustard, salt, and pepper to make the dressing.
04 - Pour the dressing over the salad and toss gently to coat all ingredients evenly. Adjust seasoning if needed. Garnish with extra basil and cracked black pepper, if desired. Serve chilled or at room temperature.