Greek Out Mezze Plate

Name: Greek Out Mezze Plate
Ingredients: 1-1/2 ea pita bread; 1-1/2 spray cooking spray; 1/4 cup red onion (diced); 1/8 tsp kosher salt; 3/4 cup boiling water; 1/2 cup couscous; 2 Tbsp fresh lemon juice; 1-1/2 tsp fresh mint (chopped); 3/4 tsp canola oil; 3/4 cup fresh parsley (chopped); 1/4 tsp ground black pepper; 1/2 cup tomatoes (small diced); 1/2 cup English cucumbers (diced); 12 slices cucumbers; 12 ea Kalamata olives (pitted); 1/2 cup tzatziki sauce; 1/2 cup hummus; 6 ea grape tomatoes (cut in half); 1/2 tsp fresh parsley (chopped)