17 Wk puppy won't eat before 1pm, throwing up bile

My 17 wk old dachshund puppy became a fan of not eating until mid morning probably around 9-10 weeks. She generally wakes up around 6 or 7, (or 5 sometimes), does her business and then wants to sleep until 10-11.
But now, it has been a struggle to get her to eat any dog food at all. I have tried multiple different kinds and brands, including wet (which is more popular than others) and putting toppers on it. Nothing really flies with her. (she wants people food). She seems to get bored with one kind or one topper after a few days, but I can't keep buying new food constantly.

She will EVENTUALLY eat something, but often not before throwing up bile once or twice because her stomach is empty.
She hasn't eaten the full recommended puppy amounts for several weeks now (but the vet says she is healthy and she's still gaining weight), she's been at approximately 2 bowls a day when she should be at 3.
I've been trying to wean her off eating people food (eggs, sweet potato, cooked meat) because I want her on primarily dog food with supplemental snacks of those things occasionally, but I always end up giving in because she won't eat anything else.
Anyone have any recommendations?
We've ruled out any "diseases", she's had stool samples checked and been tested. She has no diarrhea or constipation, her vomit is always only bile, with nothing else in it, she has normal energy levels and doesn't seem out of sorts.