After two months of sharp increases in food prices, grocers are starting to pass along their higher wholesale costs to consumers. Beverly Cabellon, 61, of Pleasant Hill, Calif., was taken aback by the $38 price for two steaks at Costco recently, up from the $27 she paid last September. "I will be grilling more vegetables and shrimp this summer," she says, adding that she and her husband will likely eat beef once a month instead of weekly. "And I may switch to pork and chicken."