Hi. You will get more suggestions if you specify cuisine, price, etc.
There are also several threads asking this question (though usually asking for dinner suggestions).
In Morningside Hghts proper, i'd say your selections are pretty limited as it's a bit of wasteland (a common theme of older threads). So going down to the UWS might be better.
If you want something tasty, relatively casual, and moderately-priced, maybe Indus Valley. For more upscale/festive options, i'd say do a search for the UWS.