Baby with insatiable appetite!

Ch
Everyone including our pediatrician always told us we would know when our baby was full/done nursing...not my LO! She has never pulled off the boob while nursing, she would stay attached 24/7 if it was up to her!
Fast forward to now, she eats solids...how do we know when shes done? Tonight i nursed her until she emptied both breasts, then fed her baby food and she ate the whole thing and kept opening her mouth for more😱 i know she gets plenty of breastmilk due to the soaking wet diapers, looks satisfied, gaining weight well, etc. but are there any other clues to know when shes done?