Serves: 4 burgers
For the vegetarian burgers:
Put the onion into a large bowl along with the ginger, refried beans, chickpea flour, salt and chana masala and mix well with your hands.
Heat a non-stick frying pan over a medium-high heat and add the oil. Form the bean mixture into 4 patties. When the oil is hot, fry the patties until they are golden brown on all sides, about 4 to 5 minutes.
Serve the burgers on wholemeal baps with sliced avocado, sprouts and tomatoes.
To make the chana masala:
Place all the spices in a jar with a lid and shake well.
Store in an air-tight jar for up to three months.