Cheese and soggy tomato sandwich cut into two rectangles with more margarine than the cheapest, mildest, rubberiest, cheese sweating away in half a ton of cling film. Penguin. Carton of own brand orange drink. Ignoring the inconvenient bit about me a) preferring triangles, b) hating the texture and smell of wet cling film, the smell, taste and feel of wet bread, chocolate, Penguins in particular, biscuits in general and sugary drinks, c) being Coeliac and lactose intolerant and d) wishing food wasn't something I had to endure for the first 18 years until I moved out and learned how to cook (and season) food, it wasn't exactly the most exciting thing to experience every day.
On special occasions (school trip at the end of the year) I was given an egg and salad cream sandwich with no margarine instead. Although I should probably call it a salad cream sandwich with one overboiled egg.
DDs had a selection from sandwiches of their choice (frequently ham), tuna pasta salad, crackers, their favourite cheeses cubed, cream cheese, ham, pork, chicken pieces, cocktail sausages, grapes, satsumas, cucumber, raw carrot sticks or shreds, fromage frais/frubes/muller corners, cherry tomatoes, nuggets after they came back from a party saying they liked them cold as well, mini pizza they'd made, pom bears, pitta bread soldiers, a chocolate filled pancake/pain au chocolat/whatever sweet thing they actually wanted that fitted in with the rules that week and whatever drink they liked. DD1 was more of a traditionalist, DD2 preferred multiple small things that could be either eaten quickly before dashing off to playtime or saved until the walk home.
Mine were depressing and made me feel like crap. Theirs were at least varied.