Heat oven to 200C/180C fan/gas 6.
Toss the chicken and onion with the oil,
arrange on a baking tray and season.
Roast for 10 mins, then add the cherry
tomatoes and sprinkle over the cumin
seeds. Cook for another 10 mins.
Meanwhile, heat the Puy lentils
following pack instructions, then turn
out into a large serving bowl. Once
the chicken is ready, add everything
to the bowl with the lentils and toss
together. Stir in the red wine vinegar,
parsley and seasoning to taste.