Cut tofu and vegetables into bite-sized pieces.
Add sesame oil to a pot and sauté garlic and green onions.
Add gochugaru (Korean red pepper flakes) and soup soy sauce, then stir-fry.
Pour in water and add clams, then bring to a boil.
Add tofu and vegetables and simmer, seasoning to taste.
Crack an egg into the stew, simmer once more, and finish.