Fortunately, circumventing genetically modified food in the grain-and-bean aisle is simple. Other than corn, no GE grains are sold on the market. Most pasta is made from a few ingredients. As long as you avoid the less-common corn pasta, you’re in the clear. Look for 100% wheat pasta, couscous, rice, quinoa, oats, barley, sorghum, and dried brans (except for soybeans).
Packaged pasta meals and canned beans can be a different story, so check those catagories if you're purchasing these items.