Jsk Feats:Arcane Adept

You have learned to regain some of your magical energy by focusing on the subtle weave of magic that permeates the cosmos. Once per day when you finish a short rest, you can choose expended spell slots to recover. The spell slots can have a combined level that is equal to or less than one-third of your character level (rounded up), and none of the slots can be 5th level or higher.

If you have the Arcane Recovery feature from the Wizard class, that feature is improved if you take this feat, instead of gaining the effects detailed above. When you use your Arcane Recovery feature, your Wizard level is considered to be two levels higher for the purposes of calculating recoverable spell slots.