In a medium sauce pan, bring the water to a boil. Add the bouillon cube and all the vegetables; simmer for 4~5 minutes or until the veggies are tender.
Stir in the polenta (or any other starch that you are using) and simmer for 3~4 minutes or until the grains are cooked.
Season with salt and pepper. Sprinkle cheese and stir in butter (if using) and serve hot.