What are your go-to fast and convenient breakfasts that are still great and healthy?

First I don't fast, but my go to breakfast is omelette with either Oats, nuts milky coffee, or an actual meal… I don't play with my breakfast as it helps energise me for most part of the day. Hugs.

Okay so my go to breakfast options are either toast with butter and jam or like some oat meal with butter and cinimen suger