Combine everything in a bowl. Set it aside. Forget about it for a bit.
Heat a skillet or wok. No oil needed—just toss in the beef and break it up as it browns.
Set aside the beef. Garlic and onion go in first. Then mushrooms, carrots. Let them soften up a little.
Add the noodles. then add bok choy. Gently pull them apart with tongs or chopsticks. Don’t stress.
Pour in your sauce. Mix until everything’s glossy and coated. Let it bubble a bit—then off the heat.
Scoop into bowls… or not. Top with scallions, sesame seed, or a fried egg if you’re feeling it.