This was my response a few weeks back when it came up. Probably too late if you were in for the Eagles-Cowboys atrocity...
The trendy food and drink right near there would be 13th Street, just 2-3 blocks from your hotel. El Vez, Barbuzzo, Sampan, Vedge, Charlie Was A Sinner are all in that region. We like a dive-ish place called Franky Bradley's that is just off 13th near Locust. In the past I've recommended McGillin's, also just off 13th near Chestnut and very close to Loews. It is a neat spot but kinda overtaken by young money douches the last couple years.
For lunch and/or dinner a little cheaper but still good, look at Walnut Street on the block between 11th-12th. Moriarty's has great wings and is a fun spot. Destination Dogs has way too elaborate hot dogs but you can customize them down, or get something else. Oloroso is a little pricier but terrific tapas in that same block. Bareburger has great burgers including two meatless options. It will probably be cold, so all of the above is within 5-10 minute walk.