I have been going to Israel for Pesach for the last 15 years.
A little info; Badatz (usually) DOES NOT give out hechsherim to places open on Pesach. Contact Rav Rubin’s office & ask for suggestions. I use a private caterer that was approved by my Chareidi kids (and we do not eat gebrokts – so we were very limited. Most caterers close their customer lists within a week after Purim, so you better get going !
Much hatzlacha.