Rich in beneficial omega-3 fatty acids, wild salmon is poached to preserve its texture; served on a whole-wheat baguette with creamy avocado-wasabi spread, the flaked fish is showered with radish sprouts.
Fill a saucepan wide enough to hold salmon with 2 1/2 inches cold water. Stir in 1/4 cup lemon juice, the celery, parsley, and 2 teaspoons salt. Bring to a boil; reduce heat. Add salmon, skin side down. Cover, and simmer until salmon is just cooked through, 10 to 12 minutes. Transfer salmon to a plate, and let cool 20 minutes. Discard poaching liquid. Flake salmon into large pieces.
Put avocado, wasabi paste, and remaining 3/4 teaspoon lemon juice into a food processor, and season with salt; puree. Transfer to a small bowl, and cover tightly with plastic wrap, pressing wrap directly onto the surface. Refrigerate until ready to use (up to 30 minutes).
Preheat oven to 425 degrees. Cut baguette in half crosswise, and trim crust from sides; cut each half lengthwise into three 1/2-inch-thick slices. Arrange, flat side down, in a single layer on a baking sheet. Toast in oven until lightly golden, about 7 minutes. Let cool 10 minutes. Spread each bread slice with about 2 tablespoons avocado-wasabi mixture, and top with salmon and sprouts.