Middle Eastern Pita Pocket Sandwiches

Ingredients (for 6 servings)

• 1 cup — yellow onion
• 7 clove — garlic
• 1.25 cup — cubed zucchini
• 1 cup — cubed eggplant
• 1 cup — bite-size strips red bell pepper
• 1 tsp — sumac
• 0.5 tsp — cumin
• 0.25 cup — tahini
• 2 tbsp — lemon juice
• 2 tbsp — parsley
• 0 whole — Sea salt
• 3 whole — wheat pita rounds
• 2 cup — hummus
• 2 cup — romaine lettuce