I think there have been threads here before when people have posted their budget, plus the meals they cook. Here are some past monthly grocery bills:
$267.62, $252.88, $260.74, $285.42, $268.87, $275.60
This is food only. I don't buy organic except eggs, and no one has food allergies.
We don't use much paper towels or napkins (we use cloth napkins but keep some paper on hand). I stock up on TP when on sale - same with pet food. I don't have a teenage boy but my DD is starting to eat a lot, LOL! I've noticed my bill creeping up as the kids get older, but that is normal.
There are no double coupons here, but I do manage to save about $150 per month using coupons. We don't eat out unless I have gift cards to cover the meal. I eat all meals at home, my DH packs a lunch and the kids eat the school lunch. I do pack my son a snack for school. We eat breakfast at home.
A sampling of what we're eating for dinner:
spaghetti
roast beef in the crock
BBQ beef sandwiches from roast leftovers
pizza
Tilapia
chicken & rice casserole
baked penne
Chicken parmesan
tacos
One night a week we have leftovers to clean out the fridge. We have salad practically every night, plus whatever veggies are on sale, and sometimes a starch. I also like to make casseroles because you can use less meat and add more veggies or pasta and no one is the wiser. We eat pretty healthy. I believe it's all about moderation and I'm not going to deny my kids some cookies now and then - just like I wouldn't take them to WDW and not let them have Mickey ice cream.
Like others, I do believe time = money, so I don't spend a ton of time clipping coupons - about an hour a week. Four hours per month divided by $150 is $37.50 per hour I am "making" - not bad.