1. Fold over the edges of the thawed puff pastry sheet, to create a 1/2 inch crust. Brush with olive oil. Bake at 400 degrees for about ten minutes, until the edges are golden brown.
2. Spread the marinara sauce over the puff pastry. Top with the spinach, basil, onions, tomatoes, and cheeses. Bake at 400 degrees about ten minutes, until the cheese is completely melted and bubbly.