Spaghetti Squash Lasagna

Ingredients

• 1 large spaghetti squash
• 1 lb Italian sausage
• 1 onion, diced
• Kosher salt
• black pepper
• 3 cloves garlic, minced
• 1 cup spinach or kale
• 1/2 onion, finely diced
• 2 carrots, peeled and sliced
• 8 oz mushrooms, sliced
• 1/2 red pepper, finely diced
• 2 cloves garlic, minced
• 1 sprig rosemary, minced
• Oregano
• Italian seasoning
• 2 28 oz cans crushed fire-roasted tomatoes
• 2-3 tablespoons butter
• 6 oz mozzarella cheese, freshly grated
• 1 oz Parmesan cheese, freshly grated