Bring a large pot of salted water to a boil and cook orzo according to package directions. In the last 2 minutes of cooking time, add the peas to the pot with the orzo. Drain peas and pasta in large colander, and run cold water over them to cool.
In a small bowl or measuring cup, combine dressing ingredients and whisk to combine.
In a large serving bowl, mix together orzo, peas, tomatoes, cucumbers, red onion, and dressing until everything is coated with dressing. Taste and season with more salt, pepper, and/or sugar as desired.
Serve immediately or store covered in the refrigerator for up to 2 days.
Video
Notes
Make Ahead Tip: Store dressing separately from salad and stir in immediately before serving. Pasta will soak up some of the dressing as it sits. If necessary, increase dressing to achieve desired consistency.
Substitute (or add) vegetables of your preference such as bell peppers, celery, edamame, radishes, corn, etc.
Add protein with hard boiled eggs, cooked chicken, salmon, tuna, garbanzo beans, diced cheese, feta cheese, etc.