Quinoa can replace brown rice for a slightly lighter base with a different texture.
Use chickpeas for a mild, creamy bite or cooked lentils for a more earthy flavor.
If watermelon radish isn't available, ordinary red radishes work perfectly.
Sauerkraut can be replaced with another fermented vegetable or omitted if you prefer a milder bowl.
Avocado makes a creamy addition, while cucumber, roasted broccoli, edamame, or shredded beets can add even more variety.