Yes! In fact, it’s super simple and it will help you adjust the number of servings for this recipe in a snap of a finger. For every part of dry pasta you need 2 parts of shrimps (by weight).  Example: if you use 1 pound of spaghetti to make pasta for four, beIf  sure to have at least 2 pounds of shrimps (total weight). You can even amp that up to 3 pounds. The quantity of tomatoes can be slightly variable. But aim for not less than spaghetti part but not more than shrimp part - about 1 cup per person.