Holy moly, that food spending is diabolical.
It will get better tomorrow, once you send out that email about office lunches. Hell, they should be feeding you!
Food spending is the easiest to control, you can get great results very quickly, once you get organized. Organization and meal planning, plus reducing waste is the key in my experience. Batch cooking is great money and time saver, so are the premeditated leftovers. The 7 dollar store brought grilled chicken can be turned into several meals. Try this- Day one. Chicken caesar salad. Day 2 chicken stir fry. Day 3. Chicken fried rice. Plus chicken soup from the bones with noodles and extra veg. For about 12 dollars worth of chicken, rice, veg and noodles, you can get 4 days of main meals. I did that last week because it's so hot around here and i didn't feel like cooking and there were no complaints.
What do you eat that it cost you over 600 in a few days??? I am really curious now.
Can your wife cook? If she is busy with the kids, she should cook a large batch of bolognese sauce, a huge pot of mild chili and a stew, freeze them in portions of 2 and that should feed you for dinners for almost 2 weeks for less than 30. Give it a go. It won't kill ya if you eat the same menu 2 weeks in a row. You can use these differently, ie spag bol or pasta bake. Stew with rice or noodles or dumplings. Chili w rice or cornbread. Nachos. Pie. Burritos, enchilladas. It is not rocket science, really.
Watch out those snacks, juices, fancy cheeses, dips, lunch meat, prepared food, organic whatnot.
Alcohol?