Ah, school lunches were always such a problem for me too. I wasn't diagnosed with ASD until I was 16 and had effectively aged out of the system so to speak so my school could get away with having done eff all.
School lunches effectively put me off peas because their god awful mushy peas that looked and tasted like cat vomit. In the later years of lower school I would come home still hungry and my mum would make me a second lunch effectively. After a while of grilling me on what it was exactly I had for lunch she decided it just wasn't enough for a growing girl and changed me to packed lunch.
Packed lunch came with its own problems however. One was that the teachers would shout out when it was each classes turn to go in. When you are out on the playground having fun, or just can't hear them over the din, that can be bad. If you missed the call you were told off and effectively shit out of luck if it was really late, no lunch for you.
The next was my mothers lunches were so boring and dull. Sandwiches, yoghurt, a packet of crisps, an apple (the only fruit I would eat as oranges and bananas were too pulpy) and a nutrigrain bar. Yeah, those awful bland tasting 'breakfast bars' with but a smidging of filling. I would get really bored quickly of the same thing every day.
So after I complained that there just wasn't enough time to both play and eat and that I was experiencing a lot of bullying, mum sent me home for lunch at my Nans across the road. This was HEAVEN, as I was allowed to just chill without worry, watch a vhs with my lunch and occasionally get some of nans crumble or grandads cake.
Then in my first middle school, I got made fun of for 'talking to my food' no idea how that came about. In second middle school (I was moved because of extreme bullying and a lack of anything being done about it), mum seemed to just give up on me. She actually packed my lunch with mouldy bread. More than once. You can imagine that was a heyday for bullies. When I challenged her on how embarrassing and disgusting it was, she started shouting at me. She was doing that a lot the more I got older. I started self harming when I was 11 because of her constant bitching at me.
At first I would eat hot meals at school after that, but they were always a pain. The potato squares tasted like dirt so I ate rice and baked beans. I got made fun of for knowing 'what dirt tasted like'; I grew up in my grandads allotment and I knew what dirt smelled like. There was also a tuck shop at break I would go to. Eventually I got so sick of being made to wait to go in for lunch when I could have been hanging out with my friends that I gave up on it altogether. Especially when the younger years got to queue up and go in first. We were bigger, we needed more food was my reasoning. So I'd stuff myself at break then spend lunch in the library on the computers, my mum hadn't got the internet at home stupid woman.
Then at secondary school I was on free school meals which had limited options. The only drink you could have on them was water or milk. Neither of which I liked so, I just didn't have anything to drink at all most days, even in hot summer. That and thanks to Jamie Oliver there was no more cake regularly, like the only thing I had to look forward to in my miserable life at school.
Is it any wonder I developed a food complex after all that? Its something my partner had to painstakingly fix themselves.