I've found that having a weekly menu set, saves me a ton of time, which can be used in doing other stuff and hence this is my Sunday evening ritual, just after we finish our grocery shipping. I start out by making combinations for the adult lunches and then work around breakfast and dinner based on that. Adult meal planning is quite easy if you ask me. Add a vegetable curry, gravy, rice(on most days) + protein and that's it. Breakfast is a different cereal - If it's rice for lunch then its millets/ wheat for the other two. Salads for adults end up in 'the kid's snack box, and so everything kitchen related is planned in advance.