In a large pot of boiling salted water, cook pasta until al dente, according to package directions. Drain; rinse well under cold water.
Transfer to a large bowl; toss with oil, lemon juice, feta, tomatoes, chicken, and basil; season generously with salt and pepper. Serve at room temperature or chilled.
Delicious and simple, a pefect for a spring/summer girl's luncheon.
This is super easy to make a big batch of, especially since you can pick up a rotisserie chicken already prepared for you.