Pyrex status

Hi Rabbi-I have a Pyrex that I use during the year to cook a dish with squash, onion, egg, and cheese(Meunster and cottage). (The dish is koosa jibben) I bake it in my oven, during the year, the ingredients aren’t chametz but aren’t marked k for p either, my question is can I make this dish on Passover using this Pyrex?
Thank you for your time!

Yes. Sounds delicious