You want to buy fresh salmon in two or three piece slabs depending on the number of people you want to cook for. A seven-inch slab for two is plenty, but for three or more in your party, ask the attendant at the fish counter to recommend the pounds of salmon you'll need to grill. Preparation: When ready to cook, remove the fish from the refrigerator and place it in a corning ware dish or large plate. The first thing to put on the fish is lemon juice. Squeeze the limes or lemons directly onto the fish. Use at least three lemons for a slab of salmon for four people. Visit thebestrecipes.org for more recipes.