Make an easy Pasta with Bolognese sauce with just five ingredients - including jarred sauce and boxed pasta! A few technique tricks will help get that authentic Italian texture with sauce that clings to every bite.
Bring a large pot of heavily salted water to a boil (see notes).
Cook the 16 oz. rigatoni until just before it's al dente (about 2 minutes before the time designated on the package).
Meanwhile, cook the 1 lb. lean ground beef in a large deep skillet until fully cooked. As you are cooking it, break it into very small pieces. I used a potato masher to make sure it got broken up enough.
Move the beef to one side of the skillet and tilt it in order to separate the grease/liquid. Remove the grease with a spoon and discard.
Add the 24 oz. marinara sauce to the ground beef. Stir, cover, and simmer until heated through.
When pasta is done just before it's al dente, reserve 1-2 cups of the pasta water and drain the rest. Don't drain too thoroughly- it's OK, and actually a good thing, if it has some of the water clinging to it.
Add the drained pasta to the skillet with the sauce (you can also move it directly from the water using a slotted spoon). If the skillet is too small, you can add the pasta back into the pot in which it cooked, and add the sauce to it.
Stir to coat the pasta in the sauce in the skillet or pot and keep heat on medium low. Add 1/4 cup of the reserved pasta water, stirring to coat. Add more pasta water as necessary to help the pasta finish cooking to al dente- it will help the sauce thicken and stick to every piece of pasta (I used about 3/4 cup total).
Turn off the heat. Stir in the 2 tablespoons extra virgin olive oil and 1/4 cup pecorino Romano cheese. Taste and add kosher salt if necessary.
Serve immediately with extra pecorino Romano and garnished optionally with chopped fresh parsley, seasoned with fresh ground black pepper.
Video
Notes
Salting the pasta water: I always err on the side of a lot of salt here, but you should add salt according to your taste preference. A good guideline from America's Test Kitchen is 1 tablespoon table salt per 4 quarter of water. This will be more if you use kosher (see this post all about salt for more info!).
Pecorino Romano - be sure to buy one made with sheep's milk, as it has a distinct taste. You can use parmesan as a substitute for pecorino Romano, if you prefer.
Save the extra reserved pasta water for storing leftovers - stir a bit of it in before packing the pasta in an airtight container. This will help prevent it from drying out in the fridge.