Cook spaghetti according to the package directions, then drain and return back to the pot.
⅕ lb spaghetti,
While your pasta is cooking, heat olive oil in a large skillet. Add thinly sliced mushrooms, and cook them for about 10 minutes, stirring occasionally.
oil,, ½ lb mushrooms,
When the mushrooms are ready, add chopped onion, minced garlic, beef, salt, and pepper. Cook for another 10 minutes until onions are soft and beef is no longer pink.
1 lb ground beef, 1 small onion,, 2 cloves garlic,, pepper,, salt,
Add the tomato soup/sauce and bring to a boil.
1 can tomato soup,
Reduce the heat, add the cream and Parmesan cheese, and cook for about 5 minutes until the sauce thickens.
½ cup parmesan cheese,, 1 cup half & half
Add the sauce to the pasta and mix well.
When serving, garnish each plate with chopped parsley.
½ cup parsley,