Pan-Grilled Salmon on Toast with Scallion Mayonnaise

Preparation

1. Step 1

   Heat grill pan over moderately high heat until hot but not smoking. Meanwhile, toss scallions with 2 teaspoons oil and season with salt and pepper. Pat salmon dry and coat with remaining 2 teaspoons oil and season with salt and pepper.

   Step 2

   Cook scallions in grill pan, turning occasionally, until soft and slightly charred, about 6 minutes, then transfer to a cutting board to cool.

   Step 3

   Add salmon to grill pan and cook, turning over once, until just cooked through, about 12 minutes total. Transfer with a metal spatula to a plate and cool slightly, then gently flake.

   Step 4

   While salmon is grilling, finely chop scallions and stir into mayonnaise with celery, lemon juice, and mint. Season with salt and pepper.

   Step 5

   Toast bread and spread lightly with some of scallion mayonnaise. Divide salmon among toasts and top with dollops of scallion mayonnaise and pieces of frisée.