Sausage Stuffed Acorn Squash

Ingredients

• 3 medium acorn squash
• 1 tablespoon olive oil (plus more for brushing onto the squash)
• 1 yellow onion (small diced)
• 1 red bell pepper (small diced)
• 2 stalks celery (small diced)
• 1-2 teaspoons chopped fresh thyme (or half a teaspoon dried)
• 3 cloves garlic (minced)
• 1 lb mild or hot Italian sausage (casings removed)
• 2 cups torn curly kale
• ¾ cup freshly grated parmesan cheese (divided)