After a baby comes into the family, the attention is on the child for a good while. It takes a lot of effort to care for an infant. Along with this a woman's body is recovering from nine months of having another individual sucking her dry of nutrients, etc. It's actually draining on a person and there is a need to recover and rest.....
Men often feel like they are "out in the cold" but a good thing to do is to take the initiative to cook meals, be an interactive father and help care for the child.... you can even bring dinner home for you and your wife once in a while.
She's not neglecting you. Her entire life has changed and she's now responsible for a child. YOU are the father, i think you can take on cooking ?
I raised a family and worked full-time for 27 years. And i cooked after work most of the time. My husband cooked at times or took us out to eat. But after i had a child? He was very helpful with everything, including helping care for and feed our child, as well as doing housework and cooking.
Just because she's a woman, it doesn't mean she has to cook.