This is what I ended up making using one+ bag of spinach. It took six batches in my 6qt Instant Pot to steam it all using an insert and the glass lid. It’s delicious and I will definitely make it again. If anyone wants the recipe I can edit this post to include screenshots of the recipe.

Edit to add: I forgot to say I added a chopped onion to the recipe.

👍 Thanks for all the suggestions. I’ve got another bag waiting to be used.

https://cooking.nytimes.com/recipes/...spinach-gratin