Ingredients
- 1 inch butcher's twine
- 2 sprigs rosemary
- 3 sprigs thyme
- 1 thin wooden dowel or stick
- 2 teaspoons kosher salt
- 1 1/2 teaspoons freshly ground black pepper
- 2 teaspoons rosemary, minced
- 2 teaspoons thyme, minced
- 4 cloves garlic, minced
- 1/4 cup, plus 2 tablespoons olive oil
- 5 tablespoons Murphy-Goode Homefront Red
- 2 tablespoons balsamic vinegar
- 4 medium baby portabella mushroom caps
- 4 medium red bliss potatoes
- 2 medium zucchini, quartered
- 2 teaspoons granulated garlic
- 1 teaspoon tamari soy sauce
- 1 teaspoon Worcestershire sauce
- 2 1/2-3 pounds tri-tip, trimmed
- 1/4 pound butter, at room temperature
- 4 (6-inch) sourdough rolls, sliced lengthwise

