Grill the beef and toss it with pine mushrooms in a savory sauce.
Cut the pine mushrooms and beef into bite-sized pieces.
Julienne the onion and carrot.
Heat cooking oil in a pan, then stir-fry the onion and carrot.
Add the beef and stir-fry, then add the pine mushrooms and cook together.
Season with soy sauce, sugar, and minced garlic.
Place the stir-fried ingredients over rice and sprinkle chopped scallions on top.