Tom Daley's healthier sausage casserole recipe | Sainsbury`s Magazine

Ingredients

• 1 red onion, in thin wedges
• 1 tsp olive oil
• 3-4 thyme sprigs
• 1 garlic clove, sliced
• 4 pork and herb sausages (we used reduced fat)
• 5g (1 tsp) butter
• 2 tsp plain flour
• 250ml hot beef stock
• 1 tsp tomato purée
• a good splash of Worcestershire sauce
• a handful of parsley, chopped
• 1 large parsnip, chopped
• 1 large carrot, chopped
• 150g wedge of swede, chopped
• 50ml milk
• 10g (2 tsp) butter