Husband's sports is $60/month and the kids' sports are $100/month?
Doctors/meds is $100/month
Entertainment is $50
Food is $500/mo.
The insurance seems high, I'd call around every six months and get new estimates. That's a lot each month for sports and entertainment. Netflix is $10 or less/month, so the rest area extras. For meds, depending on your insurance plan, make sure you're buying the meds at the best price, i.e., mail order or calling around as different pharmacies will have different prices, and see if there are generics as an option. Also, are you in the best medical plan for your family? Last year, I switched to the high-deductible plan and started an HSA. Talk about changing my philosophy about healthcare. It's been an amazing change. In the first year, I was easily able to fully fund the HSA which is now an additional investment account.
Food is always a place where savings can be found. Even if you eat mostly at home, look at the foods you're preparing and start looking at how to cut those costs with cheaper ingredients or batch cooking with sale items.
I also agree with the previous comments about housing, commuting, etc.
NDQ