go shopping for these ingredients :

1 1/2 pounds fresh tuna, swordfish or salmon fillet, 1-inch thick, cut into 4 pieces
Mustard dressing, recipe follows
2 star fruit, cut crosswise into 1/4-inch thick slices
8 cups torn mixed lettuce
1 cucumber, peeled, halved lengthwise and thinly sliced
3 green onions, sliced

Cooking Recipe:

Arrange the tuna on a lightly oiled grilling tray or broiler pan. Place 1/4 cup of the Mustard Dressing in a small bowl. Brush some dressing over the fish. Grill or broil, uncovered, for 5 minutes.
Turn the fish (should be fresh) and arrange the star fruit alongside it on the grilling tray. Brush the fish and star fruit lightly with the dressing. Return to the grill. Cook for 3 to 6 minutes longer, or until the fish flakes easily with a fork.
Combine the lettuce and cucumber in a large salad bowl. Add the remaining dressing and toss to coat well. Divide the salad evenly among 4 dinner plates. Place 1 piece of tuna on the center of each salad (can be eaten with a full meal or just by itself as a meal) . Arrange the star fruit slices around each salad plate. Sprinkle with green onions.

Mustard Dressing:
1/2 cup mayonnaise
1 tablespoon lime or lemon juice
1 1/2 teaspoons Dijon mustard
1 1/2 teaspoons chopped fresh dill
1/4 teaspoon paprika

Combine the mayonnaise, lime juice, mustard, dill, and paprika in a small bowl and mix well. Chill until ready to use.
Yield: about 1/2 cup