Cook the orzo pasta according to package instructions.
Grill the zucchini and corn on a grill or grill pan until tender and slightly charred. Cut the zucchini into bite-sized pieces and cut the corn kernels from the cob.
In a large bowl, combine the cooked orzo, grilled zucchini, grilled corn, cherry tomatoes, feta cheese, and fresh basil.
Drizzle the lemon vinaigrette over the salad and toss to combine.
Serve chilled and enjoy!