Smoked Haddock, Prawn and Mushroom Tagliatelle

Ingredients:

Three 'rounds' or balls of dry Tagliatelle or three cups of dry pasta if you prefer (Add more or less pasta depending on how hungry you are!)
1 Can Campbell's Condensed Mushroom Soup (other soups are available but not as thick )
6 Mushrooms
200 g Prawns, peeled
One large fillet of Smoked Haddock
1 oz Butter (optional)
2 tbsp Olive Oil
Seasoning to taste
Milk - (Optional)...