Add chia seeds and 3TBS water to a cup to form a chia egg. Mix and leave to set for a few minutes.
Put carrot and onion into the food processor. Process until finely chopped.
Add kidney beans and oats to carrot mix. Process until just combined.
Pour kidney bean mix into a large bowl. Add all other ingredients (including the chia egg!). Mix until combined. You may need to use your hands for this.
Shape mix into six patties.
Heat frying pan over medium heat. Add a small amount of spray oil if not using a nonstick pan.
Place patties in frying pan to cook (you may need to do this in batches if your frying pan is small). Cook for approximately 3 - 4 minutes on the first side.
Flip patties and press down to flatten. Cook for another 5 minutes until browned on each side.
Serve on a burger, or as is with a salad or veggies. Enjoy.