Preheat oven to broil.While the oven is preheating, make the vinaigrette. In a small bowl, whisk together the vinegar, mustard, salt, and pepper, whisking the olive oil in a thin stream. Set aside.
Step 2
Line a sheet pan with foil, and lay out the figs on the sheet pan, cut side up. Top each with a slice of robiola cheese, and drizzle honey evenly over the figs. Sprinkle with salt and pepper.
Step 3
Broil for 2-3 minutes, or until the cheese has melted and browned in spots. Remove from oven and set aside to cool.
Step 4
Toss the greens with the vinaigrette, and divide between four serving dishes (or assemble on a platter). Top with the hazelnuts and add warm fig slices, and serve immediately.