Stuffed Butternut Squash - Mike's Market

Ingredients

• 2 medium butternut squash, halved lengthwise and seeds removed
• 2 tbsp olive oil, divided
• Salt & black pepper, to taste
• 1 lb Italian sausage (mild or spicy), casings removed
• 1 small onion, finely chopped
• 2 carrots, diced
• 2 stalks celery, diced
• 1 pkg. Button Mushrooms - sliced
• 2 cloves garlic, minced
• ½ tsp dried thyme
• ½ tsp dried sage (optional)
• ¼ cup grated Parmesan (plus more for topping)