Thaw fish, if frozen. Brush swordfish or tuna steaks with lemon juice. Combine Italian seasoning, garlic salt, and 1/8 teaspoon pepper; rub mixture all over fish. Measure thickness of fish. Place fish on the greased, unheated rack of a broiler pan. Broil 4 inches from the heat for 4 to 6 minutes per 1/2 inch thickness. (If fish is 1 inch thick, turn over halfway through broiling.) Remove fish from rack and cut into strips. (Keep the broiler on and toast the croutons.) Divide assorted greens and arugula among 4 dinner plates. Top with fish slices and tomatoes. Stir Roasted Pepper Dressing; drizzle atop salads. Serve with Goat Cheese Croutons, if desired. Makes 4 main-dish servings. Nutrition facts per serving: 293 cal., 19 g total fat (3 g sat. fat), 45 mg chol., 396 mg sodium, 8 g carbo., 2 g fiber, 25 g pro. Goat Cheese Croutons: In a small bowl stir together 2 ozs. soft goat cheese (chevre) or cream cheese and 1/2 teaspoon snipped fresh chives, basil, or parsley. Place 8 thin slices baguette-style French bread on the rack of a broiler pan. Broil 4 inches from heat for 30 to 60 seconds or till bread is lightly toasted, turning twice. Spread cheese mixture on one side of each bread slice. Makes 8 croutons. Nutrition facts per crouton: 23 cal., 2 g total fat (1 g sat. fat), 6 mg chol., 41 mg sodium, 0 g carbo., 0 giber, 1 g pro.