Dont let her prolong bedtime, work that wants into the routine and once it's past that part, it's over.
My son is with me 24/7 and we still have this issue! Dinner 6p, bath 6:30, bedtime story early 7pm. So, yes, sometimes it simply takes 1hr to get him to bed! I think it has mainly to do when the time of his nap & food (if he’s totally full).
I’m having the same problem except with my 1 year old she won’t sleep early anymore not even if she doesn’t take naps it’s extremely exhausting and I want to cry each night