I know the type of thing you mean. Some people will do that everyday but not most people. I like them for giving me ideas sometimes but they're definitely not something to get hung up on!
DD is 6 and has a packed lunch 4 days out of 5 (she likes fish friday!). She also takes a second (small) pack up to eat after school one day a week as she goes straight from school to a 2 hr exercise activity.
I've found if she has a sandwich based lunch more than 3 times out of those 5 she gets bored and doesn't eat very well, so we mix it up.
So 2-3 times a week she'll have a sandwich based lunch - so a sandwich or wrap, with 2-3 fruit or veg depending what's in season, a something else (like a yogurt, slices of cheese, cold sausage or chicken), then a small biscuit or homemade cake or similar for dessert. Sometimes she gets a few crisps in a pot but not a whole bag and not every day.
Then the other 2-3 she'll have something like veggie chilli and rice or leftovers of paella-style rice, cottage/shepherds pie or lasagna. Then some fruit or veg and the same small biscuit/cake etc. alongside it.
If we've been to our favourite Italian restaurant at the weekend then the Monday lunch will be a couple of slices of cold pizza in place of the sandwich and she thinks she's in heaven!!
Some people might complain about the dessert part but everyone on school dinners gets a pudding every day so I'm happy enough with her having a little banana cake or choc chip oat cookie so she doesn't feel like she's missing out.
I will admit to having some of those cutters that make fruit and veg into cute shapes but I don't use them often - makes it more special when I do. She particularly likes it when I cut the middle out of cucumber slices and carrot slices then swap them over so the cucumber has a carrot middle and the carrot has a cucumber middle! I don't do it all the time though - it's not fun and special if it's every day!
Her lunchboxes have prompted jokingly jealous comments from a couple of her teachers and they come home every day either completely eaten or 90% eaten so I think I'm on the right track. We only tend to have stuff left when she's been having a hungry growth-spurt week and then her appetite has dropped back but I hadn't noticed and packed for a hungry day!