In a medium bowl, whisk together vinegar, honey, mustard, salt and pepper. Gradually whisk in oil until blended; set aside.
SALAD
Bring a small saucepan of water to boil; add pancetta and boil 2 minutes. Drain and pat dry with paper towels.
Heat a small skillet over medium heat. Add the pancetta and cook, stirring constantly until crisp, 4 to 5 minutes. Drain on paper towels.
In a small bowl, combine beets and 1 tablespoon of the dressing.
In a large bowl, toss the greens with the remaining dressing; divide among 6 salad plates. Top each salad with pancetta, pear, cheese, walnuts, and beets.
Notes
If you are preparing this salad as GLUTEN-FREE, just be sure to use brands of Dijon and pancetta that are known to be GF.