Sprinkle black pepper on the beef tips and set them aside. In a bowl, whisk together the beef broth and gravy packets. Set this mixture aside for later use.

Set the Instant Pot to sauté mode and add the oil. Once hot, add the beef tips and sauté until browned, which takes about 3-5 minutes.

Add the chopped onion to the pot and sauté for 3-4 minutes until softened. Then, add the minced garlic and sauté for another 30 seconds. Turn off the sauté mode when done.

Pour in the Worcestershire sauce and add the onion soup mix to the pot. Next, pour in the previously whisked gravy and beef broth mixture.

Spread the sliced mushrooms on top of the beef tips. Then, evenly spread the cream of mushroom soup over the mushrooms.

Seal the Instant Pot and cook on high pressure for 25 minutes. Ensure the steam valve is set to sealing for proper pressure cooking.

After cooking time is up, allow the pot to sit undisturbed for a natural release of 20 minutes. After that, release any remaining pressure carefully.

Stir the beef tips and gravy together. If desired, use a cornstarch slurry to thicken the gravy and let the dish rest for 5 minutes before serving.

Serve the delicious beef tips over mashed potatoes or egg noodles for a comforting meal.