I thought of this idea and it ended up working really well. Included pics of most steps in the process.
Onions
Garlic
Mushrooms
Cabbage
Beef
Noodles
Sauce (traditionally includes worcestershire which I don’t have):
1-2 tbsp soy sauce
1 tbsp oyster sauce
1 tbsp ketchup
1 tsp agave or sugar
Tiny splash of dark soy sauce for color
Before I started I boiled a couple cups of water in the kettle, because I knew I would be adding splashes of water at a few points and I wanted it to be very hot.
I used my 3 cup dry Aroma rice cooker, since it’s easier to take the lid on and off and see what’s happening in the cooker.
Started with a drizzle of neutral oil in the rice cooker and added diced onions (frozen in my case). As long as the lid is on for more weight, the cooker turns on. I left that to cook for a few minutes, stirring occasionally. Had to flip the cooker back on after replacing the lid each time. When the onions were starting to get some color, I added a bit of minced garlic, probably one clove.
After another minute, I added some shaved beef along with a tablespoon of hot water. Let that cook for a couple minutes, stirring once or twice. Then added sliced mushrooms that I had to use up. Another minute or so cooking.
Added in noodles. I did egg noodles because that’s what I had, they come in little nests, and they cook fast. Ramen would also work well. I also added in thinly sliced cabbage in with the noodles. Added maybe 1/3 cup of hot water. It was only submerging the beef and mushrooms at the bottom, not the noodles.
I let that steam for a minute, then stirred after the noodles had softened. Let it cook another couple minutes until the noodles were basically done.
Left the top off the cooker (it could still stay on cook mode at this point) and added the sauce, mixed, and let everything cook another minute or two so the sauce could caramelize a little.