Pound your eye of round steak with a meat tenderizer/mallet on both sides (helps make meat tender, can buy it at store already tenderized too).
Cut into bite size pieces. Or could cut in half if preferred.
Fill a gallon size storage bag with flour, garlic salt and pepper. Shake to combine.
Set Instant Pot to saute medium and add olive oil.
Put steak pieces inside baggie, zip closed and shake to coat pieces.
When Instant Pot is hot use your fingers to take pieces of floured meat out of bag shaking off excess flour before putting it into the pot.
Cook all pieces until they are lightly browned on both sides, then turn pot OFF/Cancel button - Important step! Remove meat from pan and pour some beef broth in to deglaze the pot (get stuck on food off bottom).
In a bowl whisk together cream of mushroom, onion soup mix packet. Worcestershire sauce, and remaining beef broth.
Add diced onions on bottom of the pot. Then put browned meat on top of that followed by soup mixture into your pot. Put lid on and close steam valve.
Set to pressure high for 5 minutes followed by a natural release for 5 minutes. Then let out rest of steam.
Lift lid and allow to sit for 5-10 minutes so sauce thickens more. Serve over rice or as is. I usually sprinkle with a bit of salt when serving because everyone prefers a different amt. of salt.