"Hot cereal" refers to a type of breakfast food that is cooked or heated before eating. It includes oatmeal, cream of wheat, and other similar dishes that are typically served warm. Full definition
During the spring months, when the weather is still unpredictable, I find that a big bowl of hot cereal satisfies the hunger as well as the soul. (pastryaffair.com)
It's a delicious and healthy substitute for hot cereal in the morning or even as dessert in the evening. (organicauthority.com)
So they're small flakes that are traditionally used in hot cereal. (simplyquinoa.com)