3 cups cubed peeled butternut squash (about 1 [1-pound] squash)
1 1/4 cups fat-free, lower-sodium chicken broth
1 1/2 cups fat-free milk
2 garlic cloves, peeled
2 tablespoons plain fat-free Greek yogurt
1 teaspoon kosher salt
1/2 teaspoon freshly ground black pepper
1 1/4 cups (5 ounces) shredded Gruyère cheese
1 cup (4 ounces) grated pecorino Romano cheese
1/4 cup (1 ounce) finely grated fresh Parmigiano-Reggiano cheese, divided
1 pound uncooked cavatappi
Cooking spray
1 teaspoon olive oil
1/2 cup panko (Japanese breadcrumbs)
2 tablespoons chopped fresh parsley