Step 1

Press the sauté button on an Instant Pot or other electric pressure cooker. Add the oil, onion and a pinch of salt. Sauté for 3 to 5 minutes or until beginning to soften. Add the garlic and cook for a minute more. Add the ground beef and salt and brown the meat, using a wooden spoon to break it into small pieces as it cooks, about 3 minutes.

Step 2

Add the marinara sauce, 2 cups water — I pour some of the water into the empty marinara jar and shake it to get every drop of sauce out — and the pasta to the Instant Pot. Give it a stir.

Step 3

Seal and cook on high pressure for 6 minutes (see notes above). Quick release, then open when the pressure subsides. Stir. Serve right away, topped with Parmesan and pepper, if desired.