3 fish caper fennel salad Recipes

spicy brown mustard (such as gulden s), fresh lemon juice, dry mustard, vegetable oil, sugar, divided, drained capers, minced shallot, fennel bulbs, trimmed (fronds reserved), quartered, cored, thinly sliced crosswise (about 2 cups), persian or japanese cucumbers, thinly sliced on diagonal (about 2 cups), butter lettuce, assorted smoked fish (such as salmon, trout, whitefish, sturgeon, and black cod), caper berries, lemon wedges, hard-boiled eggs, peeled, sliced (optional)

firm white fish fillets (such as halibut) or 2 1/2 lbs steaks (such as halibut), extra virgin olive oil, kosher salt, fresh ground black pepper, celery, finely diced (2 stalks ), red onion, finely diced, fennel, finely diced (optional), chopped fresh dill, fresh lemon juice (about 2 lemons), good white wine vinegar, capers, drained, good quality mayonnaise