I copied this recipe years ago out of a cookbook a friend received for Christmas. It has been one of my favorite pasta recipes ever since. I can't stand mushrooms, so I never use them. I also use lobster meat sometimes. Imitation crab and/or lobster meat works well in a pinch. Sauce tends to thicken after removed from heat. Since the recipe was listed as a sauce, it didn't give an exact amount of pasta. It simply recommended using a shell or curly type. I'm guessing 6-8 ounces is how much I use and I usually use rotini. Cooking the pasta isn't included in cooking time.