Fill a medium size pot half full with water and heat it to boil.

When water boils, add salt to water to flavor.

Add the spaghetti to the pot and keep cooking until spaghetti is fully cooked.

Drain the pasta water and leave the cooked spaghetti aside for later.

Heat up another pan and add olive oil.

Add garlic to the pan and cook on medium heat till garlic turns golden.

Add all the vegetables and sausages and cook for 5 minutes.

Add ketchup, pasta sauce and spaghetti to the pan. Mix them well and cook for another minute.

(Optional) Add salt and pepper to flavor.