Prepare the vinaigrette by mixing all ingredients in a bowl. In a skillet, on oil, on very low heat, toast the walnuts sprinkled with sugar.
On 2 plates, arrange the arugula, add pear, pomegranate, avocado. Drizzle with vinaigrette (avoiding the pear and avocado so they don't turn red), add ricotta and sprinkle with walnuts. Season with freshly ground black pepper. Do not salt.