Ingredients
Method
- Whisk oil, lemon juice, Dijon, capers, and pepper. Add 1/3 cup drained beans; mash into dressing with a fork.
- Gently flake tuna; fold into dressing with remaining whole beans and parsley, retaining some flakes.
- Cover; refrigerate 20 minutes until cold, included in prep time.
- Divide arugula among bottoms; spoon salad evenly over it. Close; cut each across middle.
- Serve cold or refrigerate at 40°F or below; use ice packs for transport.