Cut the oatmeal, tofu, and vegetables into bite-sized pieces.
Pour water into a pot and bring it to a boil.
Add the vegetables and tofu first, and boil for 3 minutes.
Add the oatmeal and boil for another 3 minutes.
Dissolve the doenjang and stir well.
Simmer on low heat for 2 more minutes, then it's done.