1 Unbaked pie crust
Unfold pie crust and place in 9 inch pie plate. Flute edges. Sprinkle bottom with 1/2 cup mozzarella cheese. Sauté lightly the Zucchini and Squash in butter. (Add a bit of salt) Add Pesto, and cook slightly firm. Toss evenly onto cheese in pan. Slice tomatoes and place on top of veggies. In a medium bowl, mix the rest of the ingredients. Spoon over tomatoes evenly to cover top. Bake at 350 degrees for 35 to 40 minutes. Serve warm.