Place a cookie sheet or baking tray in oven and heat to 400 degrees.
Drizzle some olive oil on one side of pita bread and carefully place on the hot tray. Leave in oven 3 minutes to crisp a bit.
Remove pita bread and add toppings in order listed EXCEPT the arugula. Place in oven for approximately 8 minutes or until cheese looks melted and pita bread is slightly browned. Remove and add arugula. Cut with a pizza cutter and enjoy.