In a food processor, add all the ingredients for the egg mixture. Pulse a few times to combine and then set aside.
Finely chop the cooked cauliflower florets to a rice-like size. Discard and press out all of the liquid and then set aside.
Heat a skillet over medium heat.
Add olive oil, the chopped onions, and grated carrots. Sautee until fragrant for about 4 minutes. Set aside.
In a food processor add the cauliflower, tofu, cooked onion and carrots, chives, sesame seeds, and the egg mixture.
Pulse to incorporate in order to form a batter.
Form the cauliflower patties using a round cooking shape.
Fry in a heated skillet for about 6 minutes on each side, on medium.
Serve on a green arugula salad with tzatziki sauce.