Mediterranean Farro Bowl With Tofu

Name: Mediterranean Farro Bowl With Tofu
Ingredients: 1 sweet potato, halved lengthwise and sliced into 1/4-inch-thick half moons; 1 1/2 cups seedless red grapes; 1/4 cup plus 2 tablespoons extra-virgin olive oil; Kosher salt and freshly ground pepper; 1 cup quick-cooking farro; 5 tablespoons white balsamic vinegar; 1 14-ounce package extra-firm tofu, cut into 8 planks; 1/2 cup finely chopped fresh parsley; 1 tablespoon chopped fresh tarragon; 3 scallions, thinly sliced, dark green parts separated; 1 large head or 2 small heads radicchio, roughly chopped; 1 4-ounce log goat cheese, crumbled (about 3/4 cup)