Carb Ideas for gluten or grain free diets

I always hope to find a grain we can use for our meals, especially now that we're trying to make bento lunches, but since we can't do that yet, we're going to be working on some substitutions for our carbohydrate needs. For a 600 mL bento, according to Justbento.com, there's usually around 1 cup of rice, which has 43 grams of carbs and is around 200 calories.

If we use potatoes, like we did in this bento:

our bento with potatoes rather than rice