Heat the oven to 220C/200C fan/ gas 7. Boil the lentils for 35-40 mins over a medium heat until tender.

Meanwhile, put the ginger, fresh coriander, garam masala, the ground coriander, ground cumin and the 2 whole garlic cloves in a large bowl with half the lemon juice and 3 tbsp of the yogurt. Blitz using a hand blender until smooth. Use 4 tbsp of the mixture to coat the chicken thighs in a large bowl. Arrange the chicken on a baking tray in a single layer.

Add the remaining yogurt to the remaining spice and herb mixture, along with the turmeric, 1 tsp oil, the grated garlic, 1 tbsp water and remaining lemon juice to taste. Set aside.

Tip the onions, peppers and cauliflower into the bowl used for the chicken, and toss with 1 tbsp oil to coat in some of the spice mix. Spread the veg out on a baking tray, then put in the oven with the chicken for 30-35 mins until the chicken is cooked through.

Remove the chicken and wrap in foil to keep it warm. Scatter the cumin seeds over the veg and return to the oven for 5 mins until golden.

To serve, drain the lentils and put in a serving bowl with the roasted veg and the remaining turmeric yogurt. Gently toss together. Serve with the chicken (taking the meat off the bones), and scatter with the extra coriander. If you're following the Healthy Diet Plan, eat half and pack up the rest to eat cold another day. Will keep chilled for up to three days or frozen for up to a month.