Blast the front door and ventilation shafts. Bury the Iranian sites.
If Israel were to do that, they would pretty much have one shot at it (one shot being a relatively short period of time). After that, things better be destroyed and be made incapable of reconstructing easily.
But, from what I can see, this would take the USA to do this over a longer period of time and sustaining the attack over a few weeks, and maybe a month or so, before these sites could be considered “obliterate” and beyond any use. It would take repeated strikes with nuclear bunker busters to obliterate them, and then that would make it the first time that the USA had used its nuclear weapons since the bombing of Japan.
Israel doesn’t have that capability and capacity (like the USA), as the Iranian facilities are already well-buried (as for your reference in burying them) and they would be easily reconstructed for other entry-ways because the main facility deep underground would be preserved.
Israel would do no more that put a “bump in the road” for Iran and not effectively stop their nuclear program.