Boil pasta according to package instructions.
Heat oil in a pan, and add chopped onion and chopped bell pepper. Cook on medium heat for about 5 minutes until the onions and pepper are softened
Add the can of tomato and onion mix or your chopped tomatoes to the onions and pepper and put in the chilli powder and mustard powder now if using. Squirt in the soy sauce.
If you are using a plain tomato and onion mix or chopped tomatoes then add in your sweet chilli sauce now.
Season with salt and pepper.
Cook for about 10 minutes until slightly reduced.
As soon as the pasta has finished cooking, strain out the water but do not rinse.
Stir the cooked pasta into the cooked sweet chilli tomato mix anx mix together well to coat evenly
Mix in the smoked mozzarella and cheddar and stir to combine.
Crumble feta over pasta and garnish with chopped cilantro or parsley.