Toast the walnuts in a dry skillet over medium heat for 4-5 minutes, stirring frequently until fragrant and lightly browned. Set aside to cool completely.
Core the pears and slice them thinly. If preparing ahead, toss with lemon juice to prevent browning.
Make the vinaigrette by whisking together olive oil, balsamic vinegar, Dijon mustard (if using), honey (if using), diced shallot (if using), salt, and pepper until well emulsified.
In a large bowl, toss the mixed greens with about two-thirds of the vinaigrette until lightly coated.
Arrange the dressed greens on a serving platter or individual plates.
Artfully arrange the sliced pears on top of the greens.
Sprinkle the crumbled gorgonzola cheese evenly over the salad.
Scatter the toasted walnuts and dried cranberries on top.
Drizzle the remaining vinaigrette over the finished salad or serve it on the side.
Serve immediately to enjoy the perfect contrast of flavors and textures.
