First of all, I don't think your food budget is too high by any means, but do you have a deep freezer? Altogether, there are 7 of us, me ,and my 1 year old daughter, and my husband with his 4 sons. We don't have all of the boys all of the time, but there is never less than 4 people in our house, and more often than not 6 or 7. I had been asking fora freezer for years and finally got one a few month ago. I can't tell you how much of a difference it made. our family doesn't each much meat as far as beef ans pork, but we do eat a lot of chicken and fish, Shoprite will have drumsticks and legs on sale for 79 cents a pound at times. That's when I load up on chicken. you have to make sure that when you get the meat home you wrap it and freeze it is freezer safe storage bags, though. I try to date it as well, but more often than not I can't find a sharpie. Having a freezer, where you can stock up on items when they are on sale at a huge discount saves so much money. I freeze Arnold's bread that normally costs close to $4.00 a loaf but sometimes it's on sale for half that. And if you havea Food Basics near you, this is a store I just discovered, you can't get everything there, but you can get a lot of items on sale for less than you'll ever see them anywhere else. I basically buy in bulk, and I dont' have a lot of time to cook so many of the items I buy, I wouldn't normally, but they're quick to prepare. Thos quick to prepare items tend to cost more than raw materials. Also, do try to find a discount produce place near you. Produce is one of the biggest expense in our house, and we happened to hear about a place through friends in Camden, it's a half hour drive, but I can get a cartload of quality, fresh produce for under $40, and that's a full cartload. All in all, I can spend about $100 a week on groceries, sometimes less, but that is not including cleaning supplies and other items that you have to cover in your food allowance.
As for your husband, I don't know if you will get him to agree to do it himself if he thinks he can do it better. There are just things that become issues in your marraige that you will never resolve because you both feel differently about it and both feel just as strongly that your view is the right one. I have yet to figure out how to address those issues, but I've only been married for 3 years, so I'm sure there are things that I don't know. Men always think that they can do it better, and they always think that they are doing more. It doesn't matter what the truth is, to a man, his perception is his reality, and you just have to love him anyway.
My husband at one point was concerned that we were spending a littel too much on groceries. At this point I was buying extra snack and treats for him and the kids. So I stopped buying everythign except what was needed to make 3 solid meals a day. He stopped complaining about the money and the fact that there was 'junk food' in the house and started complaining that there was nothing to eat. I totally agree that the husband's are the biggest consumers. I still dont' buy those snacks except on occasion, and quite often he won't eat all day unless I put something in front of him. But he's a grown man, and when at 3:00 in the afternoon, he is complaining that he hasn't eaten all day I just tell him there's food he can cook if he's hungry. I love him, but I'm not his mother, and I have plenty of other kids to take care of.