Blend all the ingredients until smooth (add a little sour cream if you require a thinner consistency). Refrigerate.
Spread a layer of dressing to cover the wrap, followed by a thick layer of baby spinach. Divide the remaining ingredients evenly over 1/3 of the wrap (closest to you), drizzle lightly with extra dressing (optional), and roll tightly. Cut at an angle into four equal pieces and secure with a toothpick. Make sure to serve with extra dressing on the side as a dip.