A quarter-pound cheddar cheeseburger or fried calamari with a Thai-style chile sauce for $4.95, tempura-fried walleye with a zesty pineapple marmalade for $6.95, a half-dozen Blue Point oysters for $10 and a $5.95 crab cake are among the many happy-hour temptations at the great-looking Copper River Fish & Chop House (17516 Dodd Blvd., Lakeville, 952-432-2722, www.crfish­ Served 3 to 6 p.m. daily and 9 to 11 p.m. Friday and Saturday.