OOOoooh, great ideas! <3 the egg pockets, muffin ideas-- apparently we're in a rut, too!
Our hands down, absolute fav is "greeny granola" consisting of raw, dry oatmeal, nuts, seeds, fruits of choice, topped w milk/ yogurt/ kefir. Fast, yummy, nutritionally dense.
Mochi with cream cheese/ nut butters/ jam/ whatever may be more preferred than gg, but it is spendy and served very occasionally here!
We also like dinner leftovers for breakfast-- today it was chx broc alfredo from ds2's bday dinner last night.
Grits (we all love grits, no

necessary C: heehee ) with anything and everything. Ours are whole grain, organic, yellow corn grits (not treated w lye) from the co op. Very satisfying.
If I determine the breakfast of choice is low in protein (my dc get their own and sometimes mine! bc they are 9, 12, 17), then they eat a heaping T of PB right from the spoon. (or a handful of pepitas, or sunflower nuts, etc)
When they were small, if mama took "too long" getting ready before fixing their breakfast, I'd come in to see them snacking on a bag of organic baby salad greens.
Muffins and biscuits go over big, but unless we make them ahead, they wait for weekends.

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