Pre-heat the oven for the veggie sausages. While the oven is heating / as the sausages are cooking, prepare the onion, cherry tomatoes and sun dried tomatoes. Also prepare the stock.

Heat the oil in a large, shallow casserole dish and fry the onions. Add the sausages when they're done and fry for a further 2 minutes.

Add the pasta, tomatoes, sun-dried tomatoes, and stock to the pot. Bring to the boil, then reduce to a simmer, cover and cook for 12-14 minutes, stirring every few minutes, until the pasta is cooked through.

Remove the spinach from the salad, then add the milk and spinach to the pot, then stir well and cook for a further minute until the spinach has wilted.