I've "rediscovered" cereal with milk after a long time and it became my favourite "default" breakfast - fast to prepare, nutritious, healthy (if you choose the right cereal) and easy to diversify.
I highly recommend a YouTube channel called Cereal Time TV [1] where you can find reviews of old and new cereals - I don't even know how I found this channel but after watching dozens of videos about old cereals I thought to myself "man, I want some!" so I bought a pack of cereals that I remembered from my childhood and that's how it started, I now eat cereal with milk almost everyday :-)
[1] https://www.youtube.com/user/MrGabeFonseca