In a food processor place the onion and butternut and other ingredients and blend until combined. OR grate both until very fine.

Then mix in and add the mince. Pulse the for processor just a few time or mix by hands until fully combined.

Place a large frying pan on the hob and brush with small amount of fat.

Shape the mixture into burger shapes with you hands - you want them about 1.5-2cm thick. They will be sticky so just put them straight onto the hot pan. Do this with all the burgers as you go if you shape them all together they will just stick.

Cook on a medium to low heat for about 10-15mins or until cooked all the way through. serve immediately with cheese, guacamole, salsa, eggs, chips or coleslaw!