Oatmeal for many is an essential breakfast staple. Oats can be served hot or cold, and they make an easy and healthy meal for busy people. But if you're like me and find yourself growing a bit tired of oatmeal (especially after eating it every day for a month!), then you should check out these lesser-known foods. All of them are high in protein and contain important nutrients such as magnesium, iron, and vitamin B-6. Also, they're also gluten-free, which is great news for those who are sensitive to wheat, barley and rye.

1. Amaranth

Although not technically a grain, Amaranth is a seed that has been a staple across time and culture. It has a similar appearance to quinoa, except that the seeds are much smaller. Every cup of Amaranth needs approximately 2 cups of water. To prepare it, simply bring it to a boil, cover, and let it simmer for about half an hour.

2. Millet

You may have never heard of it before, but millet is a staple food for about 1/3 of the world's population! The small pearl-like grains are reminiscent of corn and have a slightly sweet and nutty flavor when they are roasted. Use 2 1/2 cups of water for every 1 cup of millet. It takes about 25-35 minutes for it to cook thoroughly.

3. Buckwheat

Similarly to amaranth, buckwheat is not a grain, but is actually a close relative of rhubarb. With a robust taste, it goes great with fruits or nuts and is even delicious by itself. Buckwheat can be purchased either raw or pre-toasted. To make buckwheat porridge, combine 2 1/2 cups of water or milk with 1 cup of buckwheat groats. Let it come to a boil, and then give it time to simmer for about 20 minutes.