3 olive and fennel tuna melts Recipes

two 6 1/8-oz cans solid white tuna, drained well, mayonnaise, chopped fennel bulb (sometimes called anise), kalamata or other brine-cured black olives, pitted and chopped, minced fresh parsley leaves, fresh lemon juice , or to taste, rye bread, toasted lightly, grated sharp cheddar cheese

olive oil, stems fresh thyme, lemon, bay leaves, garlic, tuna , such as ahi or yellowtail, 1 inch-thick2 ribs celery, finely chopped or 1/2 small bulb fennel, finely chopped, red onion, chopped, fresh chile pepper, finely chopped, sweet pepper, finely chopped, nicoise or other pitted black olives, fresh flat-leaf parsley leaves, chopped, capers, fresh tarragon, finely chopped, seafood seasoning , such as old bay seasoning, very sharp white cheddar or gruyere cheese, brioche rolls or lobster rolls, split