Gather all ingredients.
To make the candied pecans: Combine pecans and sugar in a skillet over medium heat. Cook, stirring gently, until sugar has melted and pecans are caramelized, 5 to 7 minutes.
Carefully transfer nuts onto a sheet of waxed paper to cool.
While the nuts are cooling, make the dressing: Whisk oil, vinegar, sugar, mustard, garlic, salt, and pepper together in a bowl.
To make the salad: Layer lettuce, pears, Roquefort cheese, avocado, and green onions in a large serving bowl. Pour dressing over top.
Break cooled pecans into pieces and sprinkle over salad.
