In a large bowl, combine the ground beef, egg, parmesan cheese, breadcrumbs, basil, parsley, garlic powder, seasoning salt and black pepper. Use your hands to knead the ingredients together and thoroughly mix everything.
Using your hands again, grab about 2 tablespoons of ground beef mix and roll it into a ball. Place the meatball directly into the bottom of the instant pot bowl. Continue to roll all of the meat into balls and place them about 1 inch apart in the instant pot.
Once all of the meatballs are in the Instant Pot® bowl, pour the marinara sauce in the bowl as well, on top of the meatballs.
Close the lid of the Instant Pot® and push the vent on the top of the machine to the ‘seal’ position. Press the ‘Manual’ button and then use the plus and minus button to set the timer for 15 minutes. The Instant Pot® will take a few minutes to heat up and seal and then it will begin to cook. After the timer goes off, open the steam valve on the top of the machine using a long spoon to push it open- bewares of the steam that will come shooting out! Look at those beautiful Instant Pot® meatballs!
Enjoy alone, with a toothpick as an appetizer, on a piece of crusty bread or on top of noodles.