Cut pita into 6 triangles. Place on a baking sheet, drizzle with olive oil, sprinkle with cinnamon. Bake for 12-15 minutes.
Meanwhile, dice up the grapes. Mix together with the cranberries and pineapple, set aside.
When the pita slices are done, place a teaspoon of yogurt onto each one and top with a teaspoon of the fruit mixture. Serve immediately.