3 horseradish crust potato salad Recipes

fingerling or new potatoes, stone-ground mustard, fresh lemon juice, divided , plus 4 wedges, olive oil, divided, salt and pepper, to taste, fennel bulb, halved, cored, and thinly sliced with stalks reserved, a small red onion, sliced (about 1/8 cup), halibut fillets, low-fat sour cream, prepared horseradish, garlic clove, minced, panko (japanese breadcrumbs)

skinless salmon fillet, cut into 4 pieces, kosher salt and black pepper, frozen shredded hash browns (not thawed ), all-purpose flour, olive oil, sour cream, white wine vinegar, prepared horseradish, watercress, thick stems removed (about 4 cups), radishes, cut into wedges