DG I think it is very easy to let food issues get on top of you, and as someone said earlier it is not all about eating (food often = love in our culture, so a child rejecting your food, can be perceived as rejecting your love - can be very hurtful)
i am sure we have all done daft things in the heat of the moment so the banana / shouting / room issue is best put behind you as you know perfectly well
this is how i see the issue:
your dd has a very small appetite i am guessing - some children do - and is probably one of those super taster people that makes her very fussy about what flavours / textures she can eat
i was a fussy eater as a child and can really sympathise with anyone who has trouble eating what they are 'meant' to! it is a horrible thing and not something that a child usually does on purpose
by the way, about the only foods i can now not eat as an adult were those i was FORCED to eat as a child
i have got used to almost all the other strong flavours that i could not bear as a child - slowly, but i got there in the end
so
i think the most important things about healthy eating are:
enjoy your food
share enjoyable meals with others
eat a good variety of foods
eat when you are hungry
stop when you are full
if your dd is full at lunchtime after having 1 slice of bread then she should stop eating
she shouldn't force herself to eat any more because you want her to, or because she might be hungry later, or because the dinner ladies tell her to, or because she needs to eat fruit to be healthy
she should STOP because she is hungry
so that is good
if she is then hungry again when she gets home from school, this is fine
it doesn't mean she should have eaten more lunch
i eat lunch and get hungry again a few hours later
that is how our bodies are designed to work - especially children's bodies that burn fuel quickly
they aren't designed to be bludgeoned with an enormous midday meal into feeling no hunger till teatime
so
as she was hungry when she got home, she should then be able to choose something else she likes to eat
not a warm squishy banana obviously
no-one wants to eat that
the fact she didn't eat it at lunchtime doesn't mean she has to eat it now - she was FULL at lunchtime
now she's hungry
if you want them only to eat fruit after school then don't make brownies
if you want them to have a treat after school then let dd have it also
if you are saying that she has to eat the banana before she can have a brownie - what is that teaching her? she will eat the banana and be full again, but then she will eat the brownie, because that is the only time you are going to allow her to have it
so you are teaching her to carry on eating when she is already full
and specifically, to eat until she is full, and THEN to eat sweet things ON TOP of what she has eaten
this is precisely how people fail to listen to the feelings in their stomach and over eat - by being taught to ignore the healthy and sensible messages their bodies are giving them
if you have a very fussy eater in the house then it is probably best not to have treats like brownies around much, especially if you are going to feel het up about her having them when she hasn't eaten what you consider to be enough healthy stuff
if you have a vast majority of healthy food around, then your dd can control her own eating - i think it is great that she makes and chooses her own lunch etc - you are doing the right thing there AFAIAC
the problem is you choosing the AMOUNT she eats
you can't feel how her stomach feels! she should be choosing when to stop eating
if you don't want her to have brownies don't make them
or just have them at weekends maybe
the other thing i agreed with was the poster who said fruit is not that important - vegetables are the best things to eat
if you and she hate fruit, don't eat it - or just have a couple of oranges a week or something
eating lots of fresh veg would be better
i don't want to say "oh you will give her eating problems" but i would imagine the best way to put someone off fruit for life is to make them eat it when they don't want it!
i hope some of this might help
i don't have 9 year olds but i do think a lot about food and how to help children enjoy it
i think it is great you want her to have a healthy diet and are spending energy finding ways to encourage it