Broaching the subject seriously...
Rockstar: Mum. Actually I'm quite bored with eating the same thing for dinner every night.
(This is true - About 5 times a week Rockstar has a massive dinner of grilled salmon, hard boiled eggs, broccoli, carrots and rice for dinner. This is so I don't stress about his school lunch - "Mum. <shaking head regretfully as he breaks the bad news to me> I'm just not going to eat much whatever you give me (for school lunch). I'm too busy." Not that they don't give him time to eat you understand, but he's "too busy" kaypoh-ing to do more than stave off the worst hunger..)
Me: You get those dinners so you can eat (or not) what you want at lunch. AND zone out with Youtube as a perk as long as you make up for it by packing it all in at dinner (bad habit alert, but we don't even own a dining table and eat casual buffet style at home because we all eat at different times - touch wood it doesn't affect his table manners at all when we go out for proper dinners). I can change up your dinners, but if you take in less of the good stuff at dinner you won't get as much freedom at school and weekend meals. Want to think about it and give me your final answer, whether I need to change your dinners?
(Such deals are the silver lining of a too-serious, thin-skinned child who has decided he hates being nagged and wouldn't mind being provided a solution to "solving (his) problem" <roll eyes>)
Rockstar: <seriously> Yeah. Let me think about it.
The next day...
Me: What did you decide about your weekday dinners?
Rockstar: Can you repeat my choices again?
Obligingly I repeat our conversation the previous day, but kind of guess by his demeanor...
Rockstar: Yeah I'm fine with the same thing for dinner. <Turns back to his toys>
Me: So I don't need to do anything? You're sure? (Rockstar nods yes).
Later when I'm having a lot less luck feeding the baby...
Rockstar: Mum. Why don't you offer her the same deal you offered me?
<Gravely tries to explain conditions to baby. Is drowned out by baby gabbling at top of her voice - her latest Charming New Skill, for when she doesn't think it's something she wants to hear, I suppose...>
Random pics of the two of them horsing around in the double-parked car... Rockstar's finally warming up to handling Her Highness more...