I've yet to meet an invertebrate that I agreed with having on my plate, so no, but I also didn't use tofu.
It was a pretty simple affair, really. I velveted the beef with a light marinade, stir-fried it with some red bell pepper in home-made scallion oil, added light and dark soy sauce with some chili flakes and a pinch of sugar to form the sauce, then tossed in the noodles at the end.