Across from the Museum is Animal's Pizza (50 Maritime Dr), a small restaurant with pizza, subs and chicken wings. It is connected to the CITGO station. A good suggestion for groups, but please call ahead.
The business to the north of CITGO is Harborside Restaurant with hamburgers as big as your plate. A good suggestion for individuals and families for the Family Overnight; the price might be out of budget for Overnight Scout groups, however.
Beerntsen's Confectionery is kitty-corner from the Museum on 8th street. A great atmosphere with a soup and sandwich menu, along with sundaes, old-fashion soda fountain, and confections.
There are plenty of other local eateries located in the downtown area as well as the rest of Manitowoc, most of which are located on Calumet Ave. and Washington St. on your way in from I-43 off exit 149. To see the rest, go to http://www.manitowoc.info/dining.html.