Toss the courgettes and sweet potatoes in 1 tsp olive oil, then tip onto a baking sheet lined with baking paper and bake at 200C/180C fan/gas 6 for 25 mins until the vegetables are tender and slightly charred. Boil the kettle.

Tip the red onion slices into a heatproof bowl, cover with boiling water from the kettle, then drain. Return to the bowl and mix with the lime juice. Set aside until needed.

Heat the remaining oil in a frying pan over a medium heat. Add the onion and thyme, cover and cook for 5-10 mins until the onion has started to soften. Tip in the tomatoes and a can of water, then add the bouillon powder, peanut butter, raisins, smoked paprika and chilli flakes, if using. Drop in the cinnamon stick, then cover and simmer for 20 mins.

Meanwhile, tip the black beans into a small pan with the liquid from the can, the cumin and garlic. Simmer over a low heat for 5-10 mins, then roughly mash with a fork.

Spoon half the sauce over two plates and top with half the roasted veg. Spoon over the beans and pickled red onions, then scatter with coriander before serving. Leftovers should be left to cool completely then keep chilled for up to two days. Reheat the sauce in a pan with a splash of water and microwave the beans and vegetables until piping hot.