Into a jar with a tight fitting lid, combine olive oil, lemon juice, minced shallot, Dijon mustard, lemon zest, salt and pepper. Place the lid on the jar and shake for about 5 seconds, until the dressing is emulsified. Set aside.
3 Tbsp Extra Virgin Olive Oil, 3 Tbsp Fresh Lemon Juice, ½ Medium Shallot, minced, 2 tsp Dijon Mustard, 1 ½ tsp Lemon Zest, ½ tsp Kosher Salt, Black Pepper To Taste