In a food processor, combine chickpeas, onion, garlic, parsley, cilantro, cumin, coriander, lemon zest, lemon juice, salt, and pepper. Pulse until mixture is well combined but still slightly chunky.

Transfer the mixture to a mixing bowl and stir in breadcrumbs and beaten egg until well incorporated.

Form the mixture into patties, about 2-3 inches in diameter.

Place the patties on a baking sheet lined with parchment paper.

Preheat the oven to 400°F (200°C).

Bake the patties in the preheated oven for 15 minutes, flipping halfway through, until golden brown.

Alternatively, heat a frying pan over medium heat and cook the patties for about 4-5 minutes on each side until golden.

In a small bowl, mix together Greek yogurt, lemon juice, garlic, dill, and salt until smooth.

Serve the chickpea patties warm with the yogurt sauce on the side.