Some kids are just greedy OP and ignore people telling you that it’s your fault for being too restrictive with food, some people are just desperate to argue or blame the OP on these threads.
I think your approach is completely normal and better then having junk food everywhere and dessert every night - especially with a child who is so food focused.
So many people commenting are acting like it’s unusual for a child to be seeking out food but lots of people are like this and struggle with self control - look around at how many people are on weight loss injections because they struggle with the willpower to restrict what they eat.
I’m not trying to criticise anyone who is using WLI as I have had my own struggles with food, I’m just pointing out it’s not uncommon for some people to love food more than others and I think most people would prefer chocolate biscuits to a raw carrot!
I do think it’s a little concerning and you need to try to discourage the behaviour and I liked the idea of giving your DD a treat box to learn to ration herself and have self control because it’s an important skill to have. I’d give her a box with a few snacks for the week (call them snacks not treats) and when they are gone they are gone.
I was a greedy child and our house was full of treats, I used to eat and eat and my parents were too scared to be too restrictive in case I had an unhealthy attitude to food.
I ended up being bullied about my weight and it led to years of bulimia.
It’s best to have everything in moderation which it sounds like you do.
Having too much lying around for a child who can’t restrict themselves and will go hunting for treats is a bad approach, so is limiting things completely so it becomes more tempting.
I think you have the situation spot on buying small amounts of treat food and making sure your DD doesn’t have access to scoff the lot in one go. Hopefully as she gets older she will learn to limit herself naturally.
I think pp had good suggestions about focusing on the fact your DD helped herself and took something that was supposed to be shared and conversations should be had about sharing rather than what she’s eaten, I’d be making sure she knows to ask before helping herself otherwise it’s naughty behaviour.
I’d maybe try buying a few things and seeing if she listens and shows self control or trying the snack boxes, If she doesn’t you might need to just limit having too much in the house (or hiding it better!) for now.
I think it’s silly some people have commented to make you worry there is something wrong with your DD or she has issues that need fixing, it seems to be a common thing on here that some people think there are underlying reasons for all behaviours or something needs diagnosing. It’s not helpful and it’s often not that deep and just normal childhood behaviour and a 7 year old wanting to eat biscuits is hardly uncommon.
It definitely doesn’t suggest something as serious as Prader Willi syndrome as pp have suggested. That’s a serious genetic disorder and would have been picked up on based on other symptoms, it gets suggested far too often on here for children who just enjoy their food!