How to Make It
Heat oil in a large skillet over medium-high. Add sausage, onion, bell pepper, and garlic, and cook, stirring, until sausage is browned and vegetables are tender, 8 to 10 minutes.
Stir in pasta sauce, sugar, salt, and black pepper; bring mixture to a boil over medium- high. Reduce heat to low; simmer 15 minutes.
Cook pasta according to package directions, reserving 1/2 cup cooking water. Stir chopped basil into meat sauce. Stir in up to 1/2 cup reserved cooking water, adding 1/4 cup at a time, if needed, to reach desired consistency. Serve sauce over cooked spaghetti. Garnish with shaved Parmesan cheese, if desired.
Pasta is one of the quickest meals you can make, but there's an easy way to get it on the table even faster: When you're filling your stockpot from the tap, use very hot water to kickstart the boiling process. (Try this to speed up blanching or boiling vegetables too.)