Dinner in Waterbury CT
Although I haven't eaten there in a while I would highly recommend Drescher's Restaurant on Leavenworth St. which is near the Palace Theatre (which I am assuming is where you are going...gorgeous renovation by the way). Check out the link below for information and their menu.
Carmen Anthony's steakhouse is supposed to be the best steakhouse in CT. I believe this is the original one too. It's on Chase Ave. I have been to Circa Bistro and have had a good meal there and I hear Diorios downtown is also very good. Enjoy,Richie
Carmen Anthony's is wonderful but not a restuarant you want to hurry through dinner to go to a show. Carmen's should be your destination for the evening. It is also pretty far from the theatre. I second the recommendations for D'Orori's or Dreschers, pretty close by and great food.