Directions

1. Preheat oven to 375°.  Combine squash, broth, milk and garlic in a medium saucepan; bring to a boil over medium-high heat. Reduce heat to medium and simmer until squash is tender when pierced with a fork, about 25 minutes. Remove from heat.
2. Place the hot squash mixture in a blender. Add salt, pepper and Greek yogurt. Remove the center piece of blender lid to allow steam to escape; secure blender lid on blender. Place a clean towel over opening in blender lid to avoid splatters. Blend until smooth. Place blended squash mixture in a bowl; stir in Gruyère, Pecorino Romano and 2 tablespoons Parmigiano-Reggiano. Stir until combined.
3. Cook pasta according to package directions, omitting salt and fat; drain well. Add pasta to squash mixture and stir until combined. Spread mixture evenly into a 13 x 9-inch glass or ceramic baking dish coated with cooking spray.
4. Heat oil in a medium skillet over medium heat. Add panko and cook for 2 minutes or until golden brown. Remove from heat; stir in remaining 2 tablespoons Parmigiano-Reggiano cheese. Sprinkle evenly over the hot pasta mixture. Lightly coat topping with cooking spray.
5. Bake at 375° for 25 minutes or until bubbly. Sprinkle with parsley, and serve immediately.

Per serving: 390 calories, 10g fat, 6g sat fat, 54g carbohydrates, 19g protein, 589mg sodium, 3g fiber, 403mg  calcium

Adapted from Cooking Light SEPTEMBER 2011