Get an avocado, halve it, cut cubes and scoop 'em into that rice & beans mix, too. Use the other half the next day. Shoyu soy sauce.

For oatmeal mix-ins, add chocolate chips or raisins and brown sugar or molasses, or cubed banana. I used to mix it up by adding vegan butter, some soy creamer, and a pinch of salt instead of sweet stuff. It'd last me 'til lunch, easy.