NYC - Looking for inexpensive & fun dining during the week
Your request is pretty high level. Manhattan has thousands of restaurants.
What's your budget, per person, before tax/tip/drinks for you? How "inexpensive" is inexpensive, to you? $20pp? $30pp?
When are you coming? Do you plan to make reservations in advance or are you willing to wait for a table?
Where are you traveling from? Is this your first time in NYC? If not, what else have you enjoyed in the past?
How far are you willing to go from 7th Ave and 48th? Any other neighborhoods you will be visiting?
What cuisines do you like or dislike? Allergies? Avoids?
I'd also check out Midtownlunch.com (reviews of only lunch in Midtown, usually under $10) and RealCheapEats.com.
First time in NYC
Some common tourist inquiries:
Near the Metropolitan Museum of Art (and Whitney and Guggenheim, ish):
Near the American Museum of Natural History: