Shibley's on the Pier in Alton Bay I believe is open all year. Great fried clams, sandwiches etc. and a wonderful view of the lake.
Canoe in Center Harbor for the fabulous lobster mac & cheese;
Mames in Meredith for it's cozy atmosphere, bean appetizer and any veal dish;
Lemon Grass in Center Harbor for seafood in green curry and other fusion Thai dishes;
The Galley in Laconia for any type of fried seafood. Atmosphere isn't much, but those fried clams! and
Guissepes at the Inns at Mill Falls in Meredith for pizza; stuffed mushrooms or mussels
Ok, willing to travel just a bit, here's my list:
best lobster roll is Sam and Rosies in Ctr. Harbor
Awesome fried clams at Village Kitchen in Moultonboro (great inexpensive, everything food)
great breakfast - George's Diner in Meredith
Great Italian - Abondanta's in Meredith
Great everything (favorite calamari) - Corner House Inn in Center Sandwich
Awesome BBQ at Yankee SmokeHouse in Ossipee (Rt. 25 & Rt. 16)
Excellent Steaks at the Woodshed in Tuftonboro
Awesome awesome awesome ice cream at Jordan's on Rt. 106 in Belmont.
Depending on your tastes and ability to travel...
Lago -- Italian from the Common Man family of restaurants -- good food, good portions, good prices. Meredith
Town Docks -- Seafood from the Common Man family of restaurants -- only open during the summer. Food is pretty good, cafeteria-style service inside, waitress service outside. Fair food, fair prices. Meridith
Canoe -- American cuisine -- some interesting items on the menus, good food, fair prices. Center Harbor (Rt. 25)
Christmas Tree Tavern -- American cuisine -- Lively bar, nice, comforting food -- good food, good prices. Paugus Bay
William Tell Restaurant -- German/Swiss cuisine -- Great food, fair prices. W. Alton (Rt. 16)
Patrick's -- American cuisine -- Large bar, nice dining room. Good food, good prices. Gilford (Rt. 11A)
These places come immediately to mind...
New rest. "O" is getting great reviews from my chowhound family and it's owned by the same folks that do the Canoe over in Ctr. Harbor (love their menu, their service is miserable most of the time). Not too much in Laconia for awesome dining, will you be traveling around the lakes region, say........ Ctr. Harbor, Meredith, Sandwich, Wolfboro, Northfield (just found a great place for a Lobster roll off exit 19 called Dipsy Doodle). What do you like?