4 oz. (½ cup) olive oil
3 tbsp. balsamic vinegar
1 tbsp. Dijon-style mustard
½ tsp. sea salt
½ tsp. ground black pepper
1 lb. spinach
16.3 oz. (1-¾ cup) DOLE Mandarin Oranges drained
6-½ oz. (1 cup) olives drained and halved lengthwise
½ thinly sliced red onion
2 oz. (½ cup) crumbled feta cheese