Place pita triangles neatly in a single layer on a rimmed sheet pan.   Sprinkle with za'atar or spice of your choice and spray with cooking spray or drizzle with evoo. 

Quick method:

Preheat broiler to high.  

Place pan in the oven for 4 minutes or until golden brown and crisp. Serve warm or at a room temperature with hummus.

Low and slow method:

Preheat oven to 200°F.  

Place pan in oven for 45 minutes - 1 hour until golden and crisp.  Allow to cool and then store in an airtight container for about 1 month, if they last that long.