So here's what I do - in Excel I list the nutritional categories across, like calories, protein, sodium, etc. Then I list each ingredient and the nutritional information for that ingredient and specific quantity. When I'm done, I add all of the columns and then divide each total by the number of servings. It's not 100% but is awfully darn close (and this is much easier than it sounds once you get the hang of it). Then you can just add the dish to your food times. I did this for an avocado/yogurt salad dressing and some flaxseed muffins I made.