Method:
Arrange rack about 6 inches from the heat source in your oven broiler; preheat. Meanwhile, combine vinegar, soy sauce and honey to make sauce. Brush beef all over with 1/2 tablespoon of sauce and broil—watching closely to avoid burning—until medium-rare, 6 to 7 minutes; set aside. Arrange vegetables on a large sheet tray, toss with 1 1/2 tablespoons of sauce and broil, stirring halfway through and watching closely, until softened and just browned, about 5 minutes total. Transfer rice and vegetables to two large bowls. Thinly slice beef and arrange over the top, drizzled with remaining sauce.