Cost of foods

How much do you spend of food?
How often do you eat out?
How and when do you buy groceries?

I love eating good food, and dining out is also nice.
But thinking.. what do you pay for?
With all other costs a month, is the food money worth it?
Some of my colleagues eat out every day. They spend about 10-15 USD daily.
I however only eat out for lunch 2-3 times a month. Reason, I rather eat a dinner somewhere else, we only have a few places around the office so.
I like to spend money on other things than a lunch which I stress through anyhow.

A lunch in a lunch box can cost me around 2-3 USD. So 5 days a week I spend as much as one meal out!!

And looking at it, it's the same world wide!