We moved from Manhattan to NJ last March, then from NJ to New Orleans in September, but before we moved my gf and I would spend about $200 on Fresh Direct every 2 weeks or so. Add in $50 for quick trips to the store for stuff we run out of, etc, probably 2 lunches out per week each @ $10/meal, and maybe 3 dinners out a month averaging around $100...probably around $800/mo for the two of us. Of course, the FD total usually included a good amount of money towards beer/wine. Needless to say, we probably now spend less than half of that and eat just as well, if not better.
Edit: we also usually had people over at least one night a month for dinner, so that usually figures into those FD orders.