*I like to use about 6-ounces of spinach for this recipe, but it's totally fine to add more or less. Do they sell 5-ounce bags of fresh at your store? That's fine! All you can find is a 10-ounce frozen pack? Add it all in! A little more or less spinach will do no harm in this recipe. The more spinach you add, the less cheesy your dip will seem, of course. 6-ounces is my happy place when it comes to spinach-cheese ratio.