Both Easton and Bethlehem are within 10 miles of Nazareth.
In Bethlehem, upscale, well regarded restauants would be Bolete, Edge Apollo Grille, and of course Emeril's Chophouse at the Sands Casino. Bethlehem Breworks is a brewpub with excellant beers and good food..
In Easton ,River Grille, Sette Luna(Italian bistro).
Two really good pubs, Porters and Pearly Bakers, both with good food. North of Easton on Sullivan Trail is DeLorenzo's, our favorite local Italian red sauce place.
Hope this helps
1740 Seidersville Rd, Bethlehem, PA 18015