I found a recipe in another thread and it turned out really well,
http://lowcarbdiets.about.com/od/breads/r/lowcarbmuffins.htm .
Nice if you have to grab something and dash, I've made it with blueberries and red currents so far, but don't see why you couldn't make a savoury muffin with cheese and ham, chorizo, or any cured meat if that's your preference.
Another vote for eggs, bacon, even veggie sausages (Cauldron), livlife bread occasionally for toast, porridge is tolerated if half chopped almonds is used for the mix or almond/ flax and any other nut combo. I expect in the warmer weather the porridge will become a muesli breakfast. Yoghurt when I can't be bothered with anything else.