Put onion, carrots, ginger, garlic, tomatoes and vegetables in the instant pot and Sauté for 3 minutes.
Add soy sauce, vegetable stock, white chilli vinegar and chilli sauce.
Close the lid and set the instant pot to “Manual” and cook for 10 minutes at high pressure.
Release the pressure naturally and add cooked noodles.
Season with pepper and salt. Garnish with green onions.