Onion, Feta, and Bell Pepper Farro Salad

Heat farro according to directions.

Combine vinegar and next 4 ingredients (through garlic) in a medium bowl; stir with a whisk.

Heat 1 tablespoon olive oil in a medium skillet over medium-high heat. Add onion and bell pepper to pan; sauté 2 minutes.

Add cooked farro, onion, and bell pepper to vinaigrette; toss to coat. Fold in feta cheese.