Janet, making the marinade and marinating is all done ahead. That's why the "recipe" is so quick
If you've ever had really good garlic chili pork, this comes out like that, only better since you can add your favorite stir-fry veggies and leave out the ones you don't. And you'll never be able to add pork strips without this method again....it just won't be fork-tender.
This worked really well for a luncheon pot luck. I brought in my electric work, a large bowl of prepared rice, all the veggies cut up in separate bags, the marinated pork and peanut oil. We reheated the rice in the microwave, I cooked the pork (took all of one minute) removed it and stir-fryed the veggies based on density.
One large wok-full fed six of us and there wasn't even a pound of pork. I cut up pork chops into 1/4" strips to marinate.