1. In a small skillet, toast the pine nuts over moderate heat, tossing frequently, until golden, about 6 minutes. Transfer to a plate to cool. In a large bowl, whisk 1 1/2 tablespoons of the olive oil with the mayonnaise, lemon juice and orange juice and season with salt and pepper.
2. Pat the salmon dry and season with salt and pepper. In a very large nonstick skillet, heat the remaining 1 tablespoon of olive oil over moderately high heat until shimmering. Add the salmon skin side down and cook until crisp and golden, about 6 minutes. Turn and cook the fillets until just pink in the center, about 4 minutes longer. Transfer the salmon to plates.
3. Add the Bibb lettuce, avocados and pine nuts to the dressing and gently toss to coat. Mound the salad next to the salmon and serve.—Grace Parisi