It seems that visitors should queue as early as 8AM in order to get into the Oktoberfest tents on the weekends without a reservation.
This means breakfast must be completed before 7AM to leave enough time to get to Theresienwiese. Are there any breakfast places in Munich that open as early as 6AM?
By breakfast I mean a place that serves omeletes or porridge, or at least a salad along with donuts and coffee.