Place chickpeas, tahini, water, garlic, cumin and 2 Tbsp (30 mL) each of lemon juice and olive oil in a food processor, and blend till smooth (or mash with a fork until smooth). Add salt and pepper to taste.
To Make Tabouleh
In a medium bowl, toss together tomatoes, cucumbers, parsley, red onion, mint, and remaining olive oil and lemon juice. Adjust seasoning. Spread one quarter of hummus in each pita half and fill with one quarter of the tabouleh.
Per serving: 371 calories, 11 g protein, 15 g fat (2 g saturated fat), 52 g carbohydrates, 10 g fibre, 0 mg cholesterol, 541 mg sodium