Most breads and baked goods (such as pizza crusts, muffins, cookies, rotis, and so on) contain corn. Pitas, dark rye bread and rye rusks are less likely than other baked goods to contain corn.
Most cereals contain corn, but health food stores can be a good source of corn-free cereals. Also, many major supermarkets now produce house brands of cereal that do not contain corn.
Health food stores are also an excellent source of prepared dishes made without corn products.