Cook 500 gm of pasta as per instructions on the packet then drain.
Prep all your vegetables.
In a bowl, add the soy sauce and tomato sauce. Mix until completely combined. Leave aside until needed.
In a large pot or fry pan on medium high, add 1 tbsp of oil and chopped onions. Let the onions sweat for a minute and then add the garlic, pork mince and pepper.
Cook the mince until there is no pink left on the meat. Add the carrots, cabbage, leftovers and 3 tbsp of sauce and stir through. Cook for a further 2 minutes.
Add the pasta over the top and then the remaining sauce over the pasta. With a wooden spoon, stir the pot until everything is combined and warmed through.
Garnish with spring onions (if using) and serve with sriracha (if using).