I still have some angel delight in the cupboard, it comes in a little cardboard pot now and you make as much as you need.
I used to look forward to a birds trifle that came with all the ingredients in one box, jelly, custard and some white stuff for the top (dream topping?) together with orange and brown sprinkles. That was a posh treat.
Breville snack and toasties, beans in one side and lemon curd in the other, main and desert in one go! I did buy one with removable cooking plates a few years ago but i went a bit mad with cheese and onion ones so it lives in the cupboard now.
I did get some tinned spaghetti a while back, watery sauce with a very funny taste, just nasty, its been ruined just like the tinned spag bol! I dare not try the tinned ravioli for fear of ruining a nice childhood memory.