i have nothing else to add as far as advice goes (since you got such great ideas already) but i wanted to welcome you and minnie to YT
miss buffey is quite the finicky eater too and used to go through periods of "protest" because she knew her momma would give in

... i finally found a good food she will gobble up everytime and she has been good ever since...my other kids would eat monkey snot or anything else on the floor-they are not picky!