Picture a shopping cart piled high with organic foods. Does the wholesome goodness of fresh, chemical-free fare come to mind? Or do you wince, envisioning a pile of unpaid bills stacked beside a bowl of farm-fresh fruit? Sadly, the high price tags on clean, unprocessed foods are preventing even the most health-minded, eco-conscious Americans from buying them. A 2011 Thomson Reuters-NPR health poll found that while 58 percent of U.S. adults preferred organic food, 54 percent said it was too expensive to buy. But banning pesticides from your plate doesn’t have to break…