Another delicious addition to turkey sandwiches is Dill mayonnaise. Dill is a lively complement to roasted vegetables and adds flair to fish. Its flavor diminishes the longer it is cooked, so add at the last minute. Stir chopped dill into egg, pasta or potato salads. Make delicious, fresh dill and lemon mayonnaise by combining 1/4 cup chopped dill, 1 tsp. finely grated lemon zest, and lemon juice to taste in 1-cup mayonnaise.