Put first seven ingredients into a large bowl and set aside. Whisk together the next seven ingredients. Slowly add olive oil and continue to whisk until the olive oil is combined with the other ingredients. Taste and adjust seasonings. Pour dressing over the shrimp and vegetables and toss. Set aside.
Put a bit of the sliced romaine lettuce in the bottom of each of six 8-ounce mason jars. Top each jar with the shrimp and vegetable mixture. Cover and refrigerate until ready to serve.