Crispy on the outside, yummy and smoky flavoured on the inside, this recipe has everything you want from a burger.
Serve it with potato wedges or a big salad for a lighter meal.
MAKES 6 PATTIES
Preparation time: 35 minutes | Cooking time: 30 minutes
• 2 large beetroots (about 350g/12oz)
• 1 large onion
• 100g/3oz green lentils, cooked…