Oh yum, and I bet this would be excellent with fresh red tomatoes thrown it at the end just to heat
One of my favorite dishes was a bell pepper, beef and tomato dish at our local, long time, Chinese dive. I had it once and it was stellar. Second time - not so much. Different cook, maybe.
Not having the red peppers, I added crushed pepper flakes, but otherwise followed the recipe to a T. DH who isn't a big Asian food fan (too many veggies), looked at the leftovers and said there was just enough for his next dinner, what other leftovers were there that I could eat.