Vege cheeseburgers

I found this recipe on a bit of paper in my room, no idea where I wrote it down from! Havn't tried it out yet.
(Serves 4)

400g tinned red kidney beans
Small onion (finely chopped)
100g cheddar
100g breadcrumbs
Egg
Salt and pepper
Flour
Oil

-Mash all the ingredients together except the oil and flour, and mix to a smooth paste.
-Use the flour to shape 4 burgers.
-Fry in the oil for 8-10minutes.