Beans and Babies UncategorizedBean Bulletin, Fast Facts, Kids The Academy of Nutrition and Dietetics lists beans as an appropriate food at age six months. First foods for infants are most often pureed cereals, fruits and vegetables. But once your baby has learned to enjoy a few of these foods, it’s time to introduce higher-protein fare. Beans are a good choice for babies. They are rich in protein, iron, zinc and fiber, and they have a mild flavor. Cook beans without salt or other seasonings until they are soft enough to mash easily with a fork. You can also puree the beans in a food processor if you prefer. Freeze the mashed or pureed beans in an ice cube tray for baby-size portions. They can be frozen for up to three months.