Egg-Free Breakfast Casserole (AIP, Paleo)

Name: Egg-Free Breakfast Casserole (AIP, Paleo)
Cuisine: American
Ingredients: 2 small or 1 large spaghetti squash; 2 tablespoons coconut oil, divided; 1- 10-oz pack of frozen spinach; 1 large onion, chopped; 3 carrots, diced; 3 celery stalks, diced; 1 lb ground pork; 2- 8-oz packs mushrooms, sliced; 1 large zucchini, chopped; 2 tablespoons chopped fresh sage; 2 tablespoons chopped fresh rosemary; 1½ teaspoons dried thyme; 1½ teaspoons cinnamon; 1 teaspoon onion powder; 1½ teaspoons sea salt; 1½ cups bone broth and/or coconut milk