Grill the sausages until they're just how you like them. While they're sizzling away...
If you're using them, fry the onions in some butter or oil until they're soft and brown
Cook the pasta in boiling water until it's soft
Empty the tomato soup onto the cooked pasta
Heat it through for a couple of minutes, but don't let it burn!
Snip the sausages with some kitchen scissors into the pasta and mix well