Peas

I know it is normal for kids to be picky eaters at times. But what about an infant that doesn't want to eat anything but peas? Alder is just nuts about peas. He won't touch fruit. He is not a fan of cereal. He doesn't even like sweet potatoes. But peas? He'll chow 3 jars for every meal. (no, we don't give him 3 jars of peas for every meal) I'm hoping this phase passes soon, or else my kid is going to turn into a pea.