In a bowl, mix 1/4-1/2 cup of corn starch with seasonings of choice (recommend steak seasoning or everyday seasoning; or just salt & pepper for simplicity)
Coat the beef with the seasoned starch and set aside for about 10 minutes, until the coating is absorbed by the meat
Preheat pressure cooker on boil / sauté (high)
Preheat a medium sized frying pan on medium-high heat
In a large measuring cup, combine the red wine and tomato sauce. Top off to 1 cup with beef broth.
Put wine mixture into the pressure cooker, and cook on high for about 5 minutes or until liquid reduces by half.
When the sauce starts starts to thicken, turn off the heat and let the mixture finish reducing, stirring occasionally so it does not burn / stick to pot. You're looking for a thick, smooth, velvety consistency
Meanwhile once the frying pan is hot, add a high temp cooking oil (enough to fill the pan about 1/4 to 1/2 inch).
When the oil is hot, carefully brown the beef to a nice sear (no need to fully cook). Do not over fill pan, brown in batches if needed.
Set the Browned pieces on a paper towel to absorb excess fat
Once done, add the beef to the instant pot and carefully coat with the reduction mixture
Add 1 cup of beef broth, enough to just cover the meat, salt / pepper to taste
Add onions & veggies
Pressure cook on high for 50 minutes
Once done, fast-release pressure and check for thickness in the liquid
If desired, return pot to boil / sauté high and let the sauce reduce further to the desired consistency
Notes
Serve with the same red wine as was used in the sauce for a great tasting experience!