Add water and boil in a large deep bottomed pan. Add noodles and cook as per the instructions on the packet or al dente. After noodles are cooked, drain the water, and spread them on a colander.
Pass running cold drinking water through the noodles so that the cooking process stops, and noodles do not stick to each other.
Heat a skillet or wok and add oil. After oil gets heated, add garlic.
After raw smell of garlic goes away, add onion, green, red, and yellow bell peppers, French beans, some spring onion greens, mushrooms and carrot and cook till the vegetables get slightly cooked, for about 8-10 minutes by stirring frequently.
Add prepared sauce and mix well.
Add the cooked noodles and toss.
Garnish with spring onion greens.