You can put virtually any vegetable you see fit, and the amount of protein and vegetables is completely up to you.
- Fry the proteins in the pan, making sure they're cooked, add the garlic and onions in afterwards.
- Add the rest of the vegetables in, making sure they're cooked.
- Add some cooking wine in there, and about 1/2 cup of water added with cornstarch. Cover for about two minutes.
- Uncover, mix the ingredients together in the pan. Add about a big squirt of oyster sauce and salt and pepper. Add more water if you want it more liquid-y.
- Serve on a bed of rice.