Cook pasta according to directions on package in heavily salted water to the point of al dente.
Meanwhile whisk together oil, vinegar, red chili pepper flakes and garlic. Stir in feta, onion and chicken. Rinse and drain beans, stir into mixture. Mix in cooked pasta. Let cool for about 5-10 mins and stir in spinach.
Notes
*Please use as many organic ingredients as possible.*