Bring a large pot of water to boil and cook the tortellini according to package. Once cooked, drain and let cold water run over tortellini to stop the cooking process. You do not want your tortellini to be mushy and fall off of the skewers.
In a food processor, combine all ingredients for the pesto and blend until smooth. Add more olive oil or seasonings if desired to get a consistency you prefer.
Layer the ingredients on the skewers : I layered tortellini, tomato, cheese, tomato, tortellini. Once completed, place on a serving platter with the lemon spinach pesto in the center for dipping.