the very first thing I cooked in my Instant Pot was cube steak. I put the steaks in, added onion, sliced bell peppers, can of diced tomatoes with the juice, a couple tablespoons of tomato paste, a couple cloves garlic. Don't remember how long I cooked it, but called it Swiss Steak and it was very good. After cooking, thickened it a bit with a slurry of cornstarch and water, served over rice.
Just another idea of how to cook cube steak. Now, I would probably brown the steaks before adding other ingredients. As I said, my very first use of the Instant Pot.