Preheat oven to 200 degrees celsius (fan-forced).
Line two baking trays with baking paper and set aside.
Place the carrot, zucchini and onion into the Thermomix bowl and chop for 10 seconds, Speed 5. Place grated vegetables into a strainer and remove all excess liquid before placing back into the Thermomix bowl.
Add the turkey mince, breadcrumbs and egg. Season with salt and pepper. Mix for 20 seconds, REVERSE, Speed 3-4 or until well combined.
Roll the mixture into tablespoon-sized balls and place onto the prepared trays.
Spray with olive oil cooking spray and sprinkle with sesame seeds.
Bake for 20 minutes or until cooked through.