You're much better off going to the original recipe than to follow this, as it isn't completely correct. I'd do that with all of these AI recipes. The time to make is an hour total. That "Passata" is supposed to be marinara sauce. There are a few other errors, as well.
Here is the regular source for this recipe:
https://saltedmint.com/spinach-ricotta-stuffed-shells/?utm_source=whisk&utm_medium=android&utm_campaign=easy_spinach_%26_ricotta_stuffed_shells#recipe