Chop into chunks and put into pan (I used my slow cooker)
Add onions, mushrooms, garlic and tomatoes
Cook until onions are soft, sausages are much softer and the tomatoes are bubbling.
It doesn't need to be precise, and in fact I think it would benefit from cooking gently for as long as you can leave it. We cooked ours in the slow cooker for about three hours.
Cook spaghetti according to instructions
Spoon sauce over the pasta and enjoy
Recipe by Mummy Barrow at https://www.mummybarrow.com/tuscan-memories/