Grilled Steak & Roasted Tomato Sandwiches

1/2 cup olive oil 6 tablespoons white balsamic vinegar 1 3/4 teaspoons dry mustard, divided 1 tablespoon dark brown sugar 1 2-pound well-trimmed tri-tip beef[...]

1 pound hanger, skirt, or flank steak 1 teaspoon kosher salt plus more Freshly ground black pepper 1 medium tomato (about 6 ounces), halved 1 tablespoon[...]

6 medium tomatoes , halved crosswise 3 shallots , thinly sliced into rings 3 garlic cloves , smashed 1/2 cup extra virgin olive oil 1 1/2 teaspoons salt 1 3/4[...]

2 (12 ounce) beef sirloin strip steaks, about 1 1/2 inches thick 1 teaspoon salt fresh ground black pepper 3 green onions , thinly sliced 1 1/2 cups grape[...]