Clean the prawns, de-vein and discard the peel.
Wash and marinate by applying the spice powders and salt. Keep aside for 15 minutes.
Boil 4 cups water, add noodles, 1/4th teaspoon salt and 1 tablespoon oil and cook as per package instructions.
After boiling, drain noodles on a colander and pass some running RO water (or clean drinking water). This ensures that noodles don’t become sticky and removes starch.
Heat a kadai or wok and add 3 tablespoon oil.
After oil gets heated, add finely chopped garlic.
When garlic turns aromatic, add chopped spring onion and sauté for 3 minutes.
Add julienned onion and sauté till it turns pinkish.
Add all vegetables (capsicum, carrot, cabbage and French beans) and sauté till the vegetables are cooked but slightly crispy.
Add spring onion greens, cover and cook for 3 minutes.
Add marinated prawns, cover and cook for 5 minutes.
Add black pepper powder and mix.
Add Schezwan sauce and mix well.
Add salt to taste and mix well.
Add boiled noodles in batches and toss.
Add rice vinegar and toss.
Garnish with chopped spring onion greens.
Serve hot.