Place the frozen spinach in a bowl in the refrigerator and allow it to thaw overnight (or for several hours) until it becomes soft and completely defrosted.
Place the spinach in a colander or fine-mesh sieve. Use the back of a spoon or your hands to press down the spinach to remove any excess liquid. Be gentle to avoid making the spinach too mushy.
You can speed up the process by placing the thawed spinach in a clean kitchen towel or cheesecloth. Gather the edges of the cloth to create a bundle, and then twist and squeeze it gently over the sink to squeeze out all of the liquid.
Continue draining and pressing the spinach until most of the liquid is removed. Excess moisture can affect the texture and consistency of your dish so make sure you get as much water out as possible.
This step can be done ahead of time so if you're not planning to use it immediately, you can store it in an airtight container in the refrigerator for a few days.
Make the Dip
Add the sour cream, mayonnaise, and vegetable soup mix to a medium bowl, and stir to combine.
Stir in the spinach and cheese.
Cover and refrigerate for 1 hour, or until ready to serve.
Serve with sliced french or italian bread, crackers, pitas, tortilla chips, or fresh veggies.
Notes
Storage: store any leftovers in an airtight container for 1-2 days.This easy recipe for spinach dip without artichokes is actually a variation on the classic spinach and artichoke dip recipe. Just add the artichokes back in and you've got the original.Make it spicy by adding some sliced jalapeno!
This recipe is for cold spinach dip, but you can top it with more mozzarella and bake it at 375 degrees for about 20 minutes.If you don't care for mayonnaise, you can omit it entirely or substitute it for more sour cream.