Crush the rice crackers by placing them in a bag and rolling them with a rolling pin or a wine bottle. Set aside.
Chop the onions, garlic, and dill, and set aside.
Drain and rinse the chickpeas, add them to a large bowl, and mash with a fork until no whole chickpeas remain.
Add the onions, garlic, dill, Greek yogurt, crumbled feta, lemon zest and juice, and pepper to the chickpeas. Mix well to combine.
Taste the mixture and add salt if needed.
Chill the mixture in the fridge for 10-30 minutes. In the meantime, preheat the oven to 450.
Scoop the mixture into golf ball-sized balls, and shape into patties. Spray or brush the tops with oil (optional), and bake for 20-25 minutes or until golden.
Enjoy right away, or store for later.