Preheat oven to 400 degrees F.

Combine chickpeas, stuffing mix, and curry powder in a food processor or blender until blended.

Add egg and pulse until just combined.

Transfer the mixture to a large bowl.

Add shredded zucchini and mix well.

Shape the mixture into 12 patties (approximately 2-1/2 inches each).

Place the patties on a baking sheet sprayed with cooking spray.

Spray the patties with additional cooking spray.

Bake for 5 minutes on each side, or until golden brown.

Chop 1/4 of the cucumber and place it in a medium bowl.

Stir in sour cream and milk.

Slice the remaining cucumber.

Fill pita halves with falafel patties, sliced cucumbers, tomatoes, and sour cream mixture.