Place the soaked rice and water into a frying pan and let it sit for 30 minutes to 1 hour.

Cut the bacon into 1 cm strips. Separate the maitake mushrooms into small pieces, slice the king oyster mushroom thinly, and chop the green beans finely.

Add the seasonings (sake, soy sauce, dashi granules, sesame oil) to the rice and mix well. Spread the bacon, maitake, and king oyster mushrooms over the rice. Cover with a lid and cook on high heat until boiling, then reduce to low heat and cook for 10 minutes. Finally, turn to high heat to evaporate excess water.