Wash and shake dry spinach and parsley. Puree spinach and half of the parsley in a stand mixer along with flour, eggs, oat drink, and one pinch of salt. Set aside and let swell a bit.
Meanwhile, rinse and drain chickpeas. Mix with yogurt, lemon juice, tahini, and cumin—season to taste with salt and pepper. Wash apple, remove the core, and cut into narrow wedges.
Heat some olive oil in a frying pan, pour some pancake batter into the pan and fry over medium heat for 3-4 minutes.
Divide pancakes on plates, fill with chickpeas, and serve topped with apple slices and sprinkled with parsley.