Serves 4 / Sardines contain the same healthy fats as salmon, at a fraction of the cost. Prep tip: Pairing them with tuna tones down their concentrated flavor; adjust the ratio if you like a pronounced taste. Serving tip: For a flavorful twist on tuna melt, spread this salad on sliced French bread, sprinkle with chopped tomatoes and grated Asiago cheese, and broil until bubbly.

1/4 cup canola mayonnaise

1/4 cup chopped sun-dried tomatoes in oil, drained

2 tablespoons finely minced red onion

2 tablespoons finely minced flat-leaf parsley

1 medium clove garlic, finely minced

Pinch of cayenne pepper

1 6-ounce can solid white tuna, drained well and flaked

1 4- to 5-ounce can boneless, skinless sardines, drained and coarsely chopped

1 cup arugula leaves

4 cups mixed salad greens

2 small Roma tomatoes, chopped

1/2 cup coarsely chopped walnuts, lightly toasted

1. In a medium bowl, combine mayonnaise, sun-dried tomatoes, onion, parsley, garlic, and cayenne pepper. Gently stir in tuna and sardines; season with salt and pepper.

2. In a separate bowl, toss together arugula, mixed greens, and chopped tomatoes. Divide among four plates. Top with fish salad. Scatter with walnuts and serve.

PER SERVING: 335 cal, 27g fat (10g mono, 13g poly, 2g sat), 64mg chol, 21g protein, 9g carb, 3g fiber, 460mg sodium