if you are cruising out of Cape Liberty, there is nothing to walk to near the pier. There are restaurants near EWR that you could taxi/Uber to. I don't want to get too specific since I left the area in 2020. Since we are talking breakfast, there use to be an IHOP in Elizabeth which may still be there. Otherwise, I would probably look for a diner. Or a full service hotel and but breakfast in their restuarant.