When I’m feeling really lazy, I use a brick of cream of pumpkin soup as a sauce. I melt some butter in a pot, add some chopped garlic and let the garlic get soft, then add some rosemary, thyme and ground white pepper to the pot. If it’s dry herbs, I stir the herbs around for about a minute to wake up their flavors. Then I add the soup and let that get hot. Finally, I melt some grated Parmesan cheese in the sauce then add my cooked spaghetti. You can serve with more cheese if you want (I do, of course). It’s basically a heat up some ingredients in a pot and add cooked pasta. It’s even easier if you have some leftover, plain, cooked spaghetti already on hand in the fridge.