Wow, meatball thread! That is the opposite of drip-feeding - tsunami-feeding!
Anyway, I don't get that vibe here at all, your DH just sounds a bit peculiar, spoilt and complacent - someone who lacks the pride in himself as an adult to mind about being mollycoddled, since it's easier than learning to do things himself (lots of people do this with something, cooking, DIY, cars, and settle into fixed roles in relationships, especially I've noticed if they get together young, so they never have to attempt the other set of skills) but he's unusal in the extent to which he's prepared to put you out to indulge his whims, which suggests complacency about the relationship too, he takes your endless patience and desire to please for granted.
Is there any chance he's playing up because the baby is distracting your attention from him? Nothing has suggested that, his oddness sounds consistent over time, just checking.
His 'not believing in wasting food' is one of the funniest things I've read. (He needs to make the decision about putting each thing in the fridge, for a stated purpose, recognising that you like nice food and variety as much as he does, or in the bin).
Anyway, what about the future? It may be some years before you eat dinner together regularly as a family, if you eat after the baby goes to bed but the 'example' issue needs to be considered. In the meantime, what about weaning? Whether doing puree or BLW you may well want to use some of the previous night's dinner for the baby's lunch. That will have an impact on what you cook and how.
Right now, you need to making things easy on yourself, doing what's needed for the baby and to keep the house ticking over and resting when you can, not doing extra work. I think the meal plan and online shop option is a good one. You can post the week's meals in the kitchen, incorporating leftovers and he can plan to fill the gaps, as he perceives them, with his own things and give you a list of these for the shopping. He could also take responsibility for a meal or two. Surely if you are looking after the baby, you don't have time to teach him to cook? In our house one person does bath and bedtime, the other cooks, so if you are EBF he would be doing all the cooking.
Come to think of it FIL is very fussy, liking only quite plain foods but is very consistent. MIL likes spicy, interesting things. They eat a few 'compromise' simple meals together in the week, then some with an interesting element and a plain one and, for visitors, more interesting things, in which case he does himself a baked potato, or some plain meat. It works because they both recognise they are compromising and doing their best to accommodate each other.