Considering that in higher levels, cantrips deal more damage than L2 spells (especially if you dip 2 levels of Warlock, with EB + Hex + Agonizing Blast), I'm wondering whether it's more efficient for an (MC) Sorcerer to use L2 Slots to power Quickened (EB) cantrips.
The Quickened Spell metamagic option says:
When you cast a spell that has a casting time of 1 action, you can spend 2 sorcery points to change the casting time to 1 bonus action for this casting.
The idea would be to Quicken EB a few times (or in a big fight, until you run out of SP), and at the end of the fight (or during, if needed), convert L2 slots to more SP. Since you keep these until a long rest, you can basically stock up in SP in between fights.
Can a sorcerer use the Quickened Spell metamagic option to cast cantrips?