Brown turkey bacon in large nonstick skillet until crisp. Remove bacon from skillet, then chop. Reserve 2 tablespoons chopped bacon.
Add mushrooms and onions to same skillet and cook, stirring occasionally, until tender, about 5 minutes. Stir in garlic and cook 30 seconds.
Combine Neufchatel cheese with Wish-Bone® Guacamole Ranch Dressing in medium bowl. Stir in remaining chopped bacon and onion mixture. Evenly spread into 1-1/2 quart baking dish. Sprinkle with cheese and reserved 2 tablespoons bacon.