Make the falafel: Preheat the oven to 400°F (205°C). Line a large baking sheet with parchment paper, spray it with nonstick cooking spray, and set aside.
Pulse the chickpeas in a food processor, or finely mash them with a potato masher. Transfer the mashed chickpeas to a mixing bowl and add the garlic, onion, parsley, cilantro, cayenne, cumin, and olive oil and mix really well. Add the flour, baking powder, salt, and pepper to taste and use your hands to mix well. The falafel mixture should be firm enough to shape into balls. If it seems too mushy, mix in an additional tablespoon of flour.
Form the mixture into walnut-size balls, then flatten them a bit to form patties. Place the patties in equally spaced rows on the prepared baking sheet and give them a light spray of nonstick cooking spray.
Bake for 16 to 18 minutes, until the falafel are browned on the underside. Remove from the oven, flip the falafel patties over, and bake for 8 to 10 minutes more.
Make the tzatziki: In a blender, pulse the garlic to chop it. Add the yogurt, lemon juice, olive oil, and salt and blend until smooth. Add the cucumber and dill and pulse until the cucumber is chopped into tiny pieces. If the dressing needs further seasoning, transfer it to a mixing bowl and stir it in so that you don’t puree this into a smoothie.
Make the tabbouleh: Place the bulgur in a medium mixing bowl. Drizzle with 1 tablespoon of the olive oil and sprinkle on the salt. Measure out 1 cup (240 ml) of the boiling water and pour it over the bulgur. Immediately cover the bowl with a plate and steam the grains for 15 minutes or so, until the water is absorbed. Fluff with a fork and let cool completely.
Transfer the cooled bulgur to a large mixing bowl. Drizzle in the remaining 2 tablespoons olive oil, the salt, lemon juice, mint, parsley, tomato, cucumber, and chickpeas. Toss well with your hands to completely coat; this usually takes at least 2 minutes. Taste for salt and seasoning.
To assemble the salad, place the greens on a large plate or platter, top with tabbouleh, and then place the falafel on top. Drizzle on the dressing and sprinkle with parsley, pine nuts, and freshly ground pepper.