Toast the Pecans. Start by toasting your pecans in a dry skillet over medium heat. Stir occasionally until they’re golden and fragrant. Set them aside to cool.
Prepare the Vinaigrette. In a small bowl, whisk together the finely minced shallot, white wine vinegar, olive oil, Dijon mustard, salt, and freshly ground black pepper. Taste and adjust the seasoning as needed.
Assemble the Salad. Arrange the endive leaves on a large serving platter or individual plates. Sprinkle the orange zest over the leaves, followed by the shaved parmesan and toasted pecans.
Drizzle and Serve. Just before serving, drizzle the vinaigrette over the salad. Toss gently if desired, or serve as is for a more refined presentation.