Preheat oven to 400°F. Line a baking sheet with parchment paper and spray it with cooking oil.
Place all the falafel ingredients in the bowl of a food processor, except the flour. Pulse until a crumbly dough forms. Add in the flour a tablespoon at a time pulsing the mixture after each addition. It should be dry enough that you can shape it into a disc with your hands.
Scoop out 2 tablespoons of the mixture and form it into a disc. You should be able to get 12 falafels made from it. Place the falafels onto the baking sheet and spray the tops with more cooking oil or brush them with olive oil.
Bake for 25-30 minutes, flipping them over halfway through the cooking time. You want them to be golden and the exterior should be crisp.
While the falafels bake combine all the ingredients for the tomato cucumber salad in a bowl. Taste for seasoning.
Add all the ingredients for the tahini yogurt dressing to a bowl or measuring glass and whisk them together. The dressing will be thick. To thin it out, whisk in 1-2 tablespoons of water or milk until your desired consistency is reached.
To assemble the bowls, add ½ cup of rice to a bowl. Top it with 3 of the baked falafels, some of the tomato cucumber salad, crumbled feta, and drizzle the tahini yogurt dressing on top. Garnish with chopped parsley and dill, if desired.