1 6-ounce package ready-to-use baby spinach, stems removed
1 avocado, pitted, peeled, cubed
Whisk first 6 ingredients in medium bowl to blend. Season to taste with salt and pepper. (Can be prepared 1 day ahead. Cover and refrigerate. Bring to room temperature before using.)
Mix spinach, pear, avocado and onion in large bowl. Toss with enough dressing to coat. Sprinkle with Gorgonzola cheese. Serve, passing any remaining dressing separately.