Original recipe credit: healthyinstantpotrecipes.com
I adjusted this recipe to my own like, but did follow the procedures and cooking time of the original recipe.
Turn IP to "sauté more"
Add the olive oil while the pot is till cold then add the chopped shallots (or onion) and chopped garlic.
Stir well and add the beef before the shallots and garlic turn brown
Once the beef is cooked, turn off the IP.
Add the halved pasta and lay them criss-crossed to avoid sticking on top of the beef
Add the chopped tomatoes
Add the tomato sauce
Add salt and pepper to taste
Close the lid, set to sealing and manuel pressure (high) for 9 minutes. It takes about 10 minutes to reach pressure.
Quick release once cooked
Mix the pasta and the sauce using a tong, separate stuck pasta using 2 forks if necessary.