What can you use it for?
Well I'm guessing that you don't have the time (or inclination) to grind it into flour, ferment it for 3 days and then make the traditional Ethopian bread from it?
However, you can use it in your gluten free diet in a number of ways. One of the things I like about it, is the slightly sweet, nutty taste.
As a grain, it can be added to soups and stews to thicken them and add nutrients. You can either cook it first and then just add it to the soup for the last 10 minutes of cooking time. Or you can just pop it in and cook it along with the stew.
Because it can be considered a complete protein, due to its containing all of the 8 essential amino acids, it is ideal for the gluten free vegan or vegetarian.
The cooked grain can be mixed with onion, garlic, herbs, seeds etc to make lovely burgers. Or you can throw it in with the vegetables in a stir fry to increase the protein content.