Lamb chops with honey & orange root veg

1 small butternut squash,peeled and diced. 4 med sweet potatoes,peeled and cubed. 2tbsp oil, 2tbsp clear honey, juice of 1 small orange, 8 small or 4 large lamb chops, 3 level tbsp gravy granules, 2 tsp mint sauce green beans to serve. Preheat the oven to 220c/200c fan/gas 7.Toss the butternut and sweet potatoe in oil until coated.Spead out evenly in a roasting tin and cook in the oven for 15min.Gently stir in the honey and orange juice and return to the oven for 10min.Meanwhile,grill the chops for 6-8mins on each side.Add 300ml boiling water and make the gravy,stir in the mint sauce.Serve the chops with the roasted veg,green beans and mint gravy.