Make Ahead Tip: Prepare through Step 3; refrigerate the dressed farro and the remaining vinaigrette in separate containers for up to 2 days. Bring to room temperature before finishing the salad.
Oiling a grill rack before you grill helps prevent foods from sticking. Once the grill is heated, oil a folded paper towel, hold it with tongs and rub it over the rack. (Do not use cooking spray on a hot grill.)
1 1/2 starch, 1 1/2 vegetable, 3 lean meat, 4 fat