For the hummus: Blend garbanzo beans, tahini sauce (or yogurt) lemon juice, olive oil, garlic, cumin, salt, in a food processor. Divide hummus into small 4oz containers if available (can also use snack size zip-lock bags).
To Assemble: Divide cucumber, grape tomatoes, chickpeas, olives, and feta cheese evenly into each container (mix them or keep them separate). Place 1/4 cup portions hummus in each container. Cut pita into 8 slices and place 2 slices in each container. Add 1-2 falafel into each container. Cover and refrigerate up to 4 days. Enjoy cold or at room temperature!