I am home with my 6 month old DD, and I'm sorry but I don't particularly find it hard to cook dinner. I pop her in her highchair, give her some boiled-soft carrots or sweet potato to play with/munch on, and get on with it.
That saying, every baby is different and every household is different.
My DP would never expect me to have it done, and on particularly taxing days he's come home to no dinner and been absolutely fine with that.
I've got no expectations on how his workday has turned out so he has none on how I've managed the household.
However, we have a mutual respect for each other, which is what your DP could do with a massive dose of!
I know I need a break sometimes and I enjoy cooking so handing baby over to him for an hour so I can make some freezable stuff is quite therapeutic for me. If you don't like to cook, OP, your DP needs to understand this and find ways to work around it.
It's nice to have an equal partnership, not feeling like you're expected to do anything.