Yes, your situation is not one to complain about OP. I think it is common, when you have been used to measuring your self-worth by a successful and productive career, to feel that being a homemaker makes you somehow a lesser person. And mundane domestic and childcare activities seem to make you inferior to your DH as if you are being driven to become some old fashioned housewife.
But in an equal partnership, it shouldn't feel like that. If you aren't out at work all day, why wouldn't you have dinner ready for him, surely you have to prepare food to eat yourself? If your DH works into the small hours, I assume he doesn't expect you to get up and put a meal on the table at 1am for him (that would be a bit silly). If my DH thinks he will be home late (even if it's because he went for a pint with colleagues after work) I will always make sure there is a nice meal waiting for him to reheat. It's just sensible.
I consider myself incredibly fortunate, and I have 'less' than you. I saved up money while I was working so that I could afford to be a SAHM to my second child, this was mutually agreed with DH who has a busy job too and prior to me having my DS we earned almost exactly the same.
I always consult him about unusual purchases, just to be polite really. He does the same in return to me (usually). I don't ask permission - I let him know what I'm thinking, and get his viewpoint on the purchase. The only significant thing I've bought since March without involving him was a new shower caddy which cost £25 - it was a no brainer as the other one had rusted and was too small to be any use, I have hated it for 8 years!
My DD age 2 goes to nursery two mornings a week (paid for from my childcare voucher savings from back when I was working) and I do not have a cleaner. DH does help with chores more than I expect (usually I'm encouraging him NOT to do chores, because I feel bad about it when he is working so hard!). I do appreciate when he helps with the kids, but I'm lucky he really enjoys it AND he does it to show me he appreciates how tough it can be sometimes to be a mum 24x7.
I think if you feel uncomfortably close to becoming like a 1950s housewife, then perhaps you need to think about whether you have got the conversation right with your DH. For me and my DH, it has been an active choice and DH i feel has rather indulged me by agreeing I can be a SAHM which obviously has some advantages for him but has HUGE advantages for me as I don't have to stress about fitting motherhood round a busy career, and I can genuinely enjoy our two kids.
I know sometimes my DH is jealous of my time with the kids, and of my stress-free life. I am also sometimes jealous of his growing pension pot, his nights out with the guys from work, his freedom generally, his ability to sleep for whole nights without being woken up by the toddler, and his high-flying career success. But neither of us would change a thing, if anything I feel more like an equal since I've quit work to focus on raising our kids, as I feel he has entrusted me with that role (we did seriously discuss if he should quit work and me return to work but decided i would benefit more from the break from office life).
Hope you figure a way through it. Talk to your OH and see how he feels, it might really help you reconceptualise what your role in the family is.