Preheat oven to 400°F. Halve the squash and remove the seeds. Place squash halves in a baking dish, cut side up. Brush the insides of the squash with 2 tablespoons Natural Grapeseed Oil and season with 1 teaspoon Rancher Rub. Roast for about 40 minutes or until tender when pierced with a fork
Meanwhile, heat remaining1 tablespoon oil in a 12-inch nonstick skillet over medium heat. Add onion, celery, and ground sausage. Sauté until sausage is cooked through.
Stir in apple, sage, and remaining ½ teaspoon Rancher Rub. Cook until apple is softened, about 3 minutes.
Remove squash from oven. Preheat broiler. Stuff squash with sausage filling and top with parmesan cheese.
Return stuffed squash to the oven and broil for 2-4minutes or until nicely browned.
