you don't need any milk in scrambled eggs. cook them low and slow with butter. is she actually hungry for breakfast? it might be too much food first thing.
miso soup, avocado or well-seasoned bone broth will help with the carb flu. keep up throughout the day, or stir some eggs in the soup for egg drop soup for breakfast.
instead of a potato, why not some greens? or broccoli? something less starchy? if you are north of the equator, apples are not yet in season. if she wants fruits, howzabout some berries or melon?
too many nuts and apples may be giving her the runs, honestly. nuts blow right through me.
unless your wife is a big person, this sounds like lots of protein for her. try cutting back to 4 oz., instead of 8. i can't choke down 1/2 pound of red meat very often, nor do i need to.
hard squashes and potatoes can be fine, but super carby and loaded with butter may not be doing her any favors.
frankly, it just sounds like too much food and the sugar highs from the apples and potatoes are whacking out her insulin.
i'd be a vegetarian if bacon grew on trees.