2 onions, finely chopped
2 tbsp olive oil
1/2 tsp dried thyme
1/2 tsp dried basil
1/2 tsp dried rosemary
2 tbsp plain flour
300ml vegetable stock
1 tbsp wholegrain mustard
2 tbsp runny honey
400g-500g leftover turkey, shredded
350g leftover roasted vegetables, chopped into chucks (such as roast potatoes, parsnips and carrots)