Prep the falafel: Put all ingredients into a food processor and blend until combined but not completely smooth. Chill in the refrigerator for at least 30 minutes.
Make the falafel: Heat 1 inch of olive oil in a large pan over medium heat. Remove falafel mixture from the refrigerator, and gently place heaping tablespoons of the mixture into the oil. Allow the falafel to brown on one side, about 3-4 minutes, and then use a slotted spoon to flip them over for another 3-4 minutes. Transfer to a paper towel-lined plate.
Hummus
Drain 2 cans of chickpeas and reserve the juice. Place all of the ingredients into a food processor and blend, adding reserved juice until desired consistency is achieved.
Tzatziki
Fold all ingredients together in a bowl. Store in an airtight container in the refrigerator.
Tabouli
Place all ingredients in a large bowl and gently fold to combine. Season with salt and pepper.