If the new drive is the same size or bigger, you could also use `dd` to clone the entire disk, then use `efibootmgr` to setup the bootloader either from a recovery image or after booting using UEFI Shell. Then just expand the partition/filesystem.

I've been meaning to post an update to that guide for ZFS, which I've been using on my systems recently. With ZFS I can take a snapshot and send it to a new drive.