One Sausage, One Tomato, 100g Pasta Meal Deal

100 g pasta, tube or fusilli (can be gluten free but runs the risk of getting soggy because of the additional cooking time, you'll need to experiment)
1 tomato large or equivalent cherry tomato. A little extra tomato doesn't hurt
1 Italian sausage (approx 83 grams worth), gluten free if required
olive oil, handful parsley, little parmesan, salt, pepper

Cook pasta according to directions. Drain, reserving about half a cup of the salted pasta water.
Remove skin from sausage. Fry in a large frypan, breaking up well with masher.
Add diced tomato to pan, and when softened in a few minutes, break this up with masher too, ensuring it's well mixed with the sausage. Cook for another minute.
Add drained pasta water and pasta to the frypan. Stir continuously so the sauce seeps into the pasta by osmosis for a couple of minutes.
When no sauce left to seep, stir through parsley, parmesan, salt and pepper.