Toasted pine nuts add a nice crunch to this mix from the sea. If you're not into salmon, swap it for water-packed tuna!
In a bowl, combine salmon, pesto, mayonnaise, garlic, sun-dried tomatoes, olives, scallions and vinegar; mash with a fork. Add a little water to adjust texture, if necessary. Season with salt and pepper.
Spoon salmon salad into avocado halves, sprinkle with toasted pine nuts, if desired, and serve.