What most naturally follows?

How to make buddha bowls
Use cooked rice.
Place a few small scoops of cooked rice into a large bowl. If you're not adding any other grains or starches, consider using about 1/2 cup (125 g) of cooked rice.
For a little variety, try using one of these types of rice : Jasmine or basmati wild brown bhutanese red Try barley or quinoa. If you're tired of rice or just want a different texture, use cooked barley or quinoa.