Fish Sandwiches

1/2 cup mayonnaise or salad dressing

4 hamburger buns or kaiser roll s, split and toasted

Roasted red sweet pepper strips or fresh tomato slices

4 4- to 5 ounce fresh or frozen fish fillets, 1/2- to 3/4-inch thick

1 teaspoon lemon-pepper seasoning, Jamaican jerk seasoning , or Cajun seasoning

1 teaspoon honey

4 teaspoons Dijon-style mustard

Watercress or lettuce leaves