- Soak the oats in the milk.
- Cook the peas according to cooking instructions on pack.
- Sauté the onion in butter until soft.
- Mash the peas with a fork and mix with the onion, egg, lemon juice and cumin.
- Form the mixture into a burger shape.
- Fry or grill on a medium-low temperature, until browned on both sides.
- Serve in some crusty bread with your favourite burger fillings.