In a medium bowl, mix mayonnaise, Parmesan, lemon zest, lemon juice, capers, garlic, mustard and black pepper.
Heat olive oil in a small skillet over medium heat. Add the panko breadcrumbs, and garlic powder, and cook stirring frequently until browned and toasted, about 5 minutes.
Pour the dressing over the kale and toss to combine. Add the garlic breadcrumbs and toss again to combine. Add the diced avocados and serve at room temperature.
Notes
Make ahead: The salad will keep well for several days, but don't add teh avocado until just before serving.