If you're looking for a quick dressing to mix together, this is the one, plus it's on the "healthier" side. If you want to cut the tang a bit you could add honey as well.
Total Time: 5 Minutes

Ingredients
½ Cup Balsamic vinegar
½ Cup olive oil
2 tsp Dijon mustard
2 tsp salt
1 tsp pepper
Directions
Mix together