In a blender or food processor puree until smooth, the olive oil, lemon zest and juice, parsley, oregano, mustard, and cinnamon. Season to taste with salt and pepper.
Make a wreath of spinach leaves on the outside edges of a large shallow pasta bowl or dinner plate. Combine the pasta with half of the dressing, the cucumbers and the scallions. Center the pasta salad in the middle of the spinach. Drizzle the remaining dressing over the spinach and garnish the spinach with black olives. Garnish the pasta with feta cheese and tomato.