Mix doenjang (soybean paste), gochujang (red pepper paste), and soy sauce with water to make a broth.
Cut tofu, zucchini, potato, onion, mushrooms, and spicy chili peppers into bite-sized pieces.
Add the prepared broth and chopped ingredients to a pot and bring to a boil.
Once the ingredients are cooked, season further with doenjang to taste.
Add minced garlic and green onions, let it boil once more, and it's ready to serve.