Preheat oven to 400 degrees. Prepare baking sheet with parchment paper.
Wash the squash and cut off the ends(just enough to make them flat). Then cut the squash in half and remove the seeds. **microwave the squash for 3 minutes on a plate to soften the outer skin. Then let it cool a few minutes before cutting it. Doing this makes a HUGE difference.
Once the squash are ready, place them flesh side up on the cookie sheet, and drizzle a good olive oil over the top. Spread it around all the flesh so it doesn't dry out in the oven.
Place in the oven and bake for 35 minutes.
While this is baking, make the filling. In a large sauce pan, add a little olive oil and warm. Then sauté the carrots, celery, and onion. This is often called a mirepoix. Sauté for about 7-10 minutes or until they start to get soft. Then add the garlic and cook for 30 seconds.
Add the apple and seasonings and cook for 3-4 minutes.
Then add the sausage and cook until it is fully cooked.
Then add the panko crumbs and 3/4 C parmesan cheese.
By now the squash should be ready. Remove from oven and divide the filling between the six halves. Top with remaining 1/4 C cheese-it just needs a little sprinkle. Return to the oven and bake for 10 minutes.
Serve as an appetizer, side dish, or main dish. This recipe is so good! It's actually my favorite to eat the leftovers(if there is any) for breakfast the next day. So, so good!
