Marinated Tri-Tip With Chinese Mustard Sauce And Roasted Green Onions And Mushrooms

1/3 cup dry red wine
2 tablespoons soy sauce
3 garlic gloves, minced
1 teaspoon plus 2 tablespoons dry mustard
1 11/2-pound beef tri-tip roast

2 tablespoons honey
2 tablespoons water
1/4 teaspoon salt

3 bunches green onions, root ends trimmed, dark green tops cut off and discarded
1 pound or three 6-ounce packages baby portobello mushrooms
2 tablespoons olive oil

Whisk wine, soy sauce, garlic, and 1 teaspoon dry mustard in large glass baking dish. Add tri-tip and turn to coat with marinade. Let stand at room temperature 30 minutes, turning meat occasionally.

Meanwhile, whisk honey, 2 tablespoons water, 1/4 teaspoon salt, and remaining 2 tablespoons dry mustard in small bowl to blend; set sauce aside.

Preheat oven to 450°F. Remove tri-tip from marinade; pat dry with paper towels. Place tri-tip on large rimmed baking sheet; sprinkle with salt and pepper. Arrange green onions and mushrooms around meat; drizzle onions and mushrooms with olive oil. Roast 12 minutes. Turn meat, onions, and mushrooms over; roast until vegetables are tender and instant-read thermometer inserted into center of meat registers 125°F for medium-rare, about 12 minutes longer.

Place mushrooms and green onions on platter. Cut meat into 1/4-inch-thick slices; arrange atop green onions and mushrooms. Pour any pan juices over. Drizzle lightly with mustard sauce. Serve, passing remaining mustard sauce alongside.