Mince the onion, carrots, zucchini, and mushrooms.
In a deep pot over high heat, add a bit of olive oil, then saute the onion, carrots, zucchini, and mushrooms.
Continue sauteing until the vegetables are browned, this will take about 10 minutes.
Meanwhile, roughly blend together rice and water for 30 seconds, then add to the sauteed veggies.
Season the porridge with garlic, soy sauce, salt, and pepper, then mix thoroughly.
Add egg yolk, then continue stirring, letting it boil until the desired thickness is reached.
Place porridge in a bowl, garnish with sesame oil, crushed sesame seeds, and seaweed paper, then serve hot and enjoy!