Try these fun appetizers for a cool treat tips: if you dont have lemon dill tuna, substitute 1 can (4. 5 oz. ) starkist selects solid light tuna fillet in olive oil, 1 tsp. lemon juice and tsp. dried dill. you can serve the tuna mixture on a bed of lettuce for another refreshing summer salad this also makes a nice lunch; quarter two tomatoes and place a scoop of tuna in the center.