Put the goat cheese log in the freezer for 1 hour. With a sharp knife heated in a glass of hot water, cut the log crosswise into 4 equal rounds. Season the rounds with salt and pepper. Put 4 salad plates in the refrigerator to chill.

Preheat the oven to 425°F. Spread the walnuts in single layer in a small rimmed baking pan and toast in the oven until they darken in color, about 5 minutes, watching carefully so they don’t burn. Set aside.

In a small, shallow bowl, beat the eggs. Put the flour in another small bowl and the breadcrumbs in a third bowl. In a large skillet, heat the oil over medium-high heat. One at a time, coat the cheese rounds on both sides, first in the flour, then the beaten egg, and finally the breadcrumbs. Sauté  the coated cheese rounds until golden brown on both sides, 2 to 3 minutes per side, turn them carefully with a spatula. When done, carefully transfer the cheese rounds to a clean plate.

To assemble the salad, peel and core the pears and thinly slice them lengthwise. Remove the plates from the refrigerator and arrange lettuce leaves radiating from the center of the chilled plates, alternating the leaves with pear slices. Place a round of warm goat cheese in the middle of each plate and sprinkle with toasted walnuts. Arrange the reserved fresh raspberries on each plate and drizzle with the raspberry vinaigrette. Serve immediately.