First of all take a pan and add water and salt to it ,boil pasta till it is cooked,strain it in strainer and apply oil to it so that pasta does not stick to each other.
Now grate potatoes, add little milk to make a paste.now add rest of milk and blend it to make smooth paste.
Now take a wok add oil,saute all veggies and add potato milk mixture and cook till u get desired consistency.
Now add cheese and stirr it continously,add pasta and add salt,oregano,chilli flakes,black pepper.