1. Finely chop all the vegetables. You can even shred the vegetables in a food processor.
2. Heat oil in a wok. Add garlic and saute for a 15 to 20 seconds.
3. Add the onions, celery and all the vegetables.
4. Increase the flame and stir fry the vegetables on a high heat.
5. More finely the vegetables are chopped, more faster they will cook.
6. Keep on stirring and tossing the vegetables on a high heat continuously. So that they are equally browned and cooked.
7. When the edges of the veggies starts to become light brown, add schezwan sauce.
8. Stir and then add the rice in parts. Mix and toss the rice with the veggies gently.
9. Season with salt, pepper and vinegar. Stir and toss well so that the sauce coats all the rice grains evenly.
10. Garnish with the spring onions greens.
11. Serve schezwan fried rice plain or with a side indo chinese dish like veg  manchurian, mushroom manchurian or any dish of your choice.

Enjoy your meal!