Generally only make one meal sometimes it is a beautifully crafter homemade meal other times it is a cheese toastie with some veggies and fruit on the side.
Normally do fish at least once a week (sometimes scampi and chips), fish pie, teriyaki salmon or kedgeree go down well. Sweet chilli squid one loves the other doesn't.
Jacket potatoes - beans, cheese, tuna and sweetcorn
Pasta - tuna bake, fajita pasta bake, lasagna, spaghetti bolognaise, pesto chicken pasta, bacon and cheese pasta, carbonara,
Majority of Japanese or Chinese goes down well.
Chicken Rojan Josh, balti, butter chicken etc all fine. I wouldn't cook a vindaloo or madras.
Pie and mash always goes down well.
Out of preference they wouldn't eat, cabbage, sweet potatoes, mushrooms, olives, avocado, hummus, peppers (little one), aubergine, courgette, plums (unless duck in plum sauce), stone fruit, stewed apple, edamame.
If I make food with stuff they do not prefer to eat I still serve it and up to them if they want to eat round it. I dish up food rather than self serve as it wouldn't occur to mine to get food they were unsure of. If I ask them to meal plan it would be pizza and chips every night.