Cheesy Spaghetti Squash Casserole

Ingredients (21)

• ✓ 1 (3 pound) spaghetti squash, halved and seeded
• ✓ 2 tablespoons olive oil, divided, or as needed
• + ¼ teaspoon garlic pepper seasoning add to pantry
• + 1 (16 ounce) package sliced fresh mushrooms add to pantry
• + 1 large onion, diced add to pantry
• + 1 medium jalapeno pepper, seeded and diced add to pantry
• + 1 bulb garlic, cloves peeled and minced add to pantry
• + 1 pound ground pork sausage add to pantry
• + 1 ½ teaspoons fennel seeds add to pantry
• + salt and ground black pepper to taste add to pantry
• + salt and ground black pepper to taste add to pantry
• + 1 pound Broccoli, raw add to pantry
• + 2 tablespoons chicken soup base (such as Better than Bouillon®) add to pantry
• + 1 ½ teaspoons dried oregano add to pantry
• ✓ 1 ½ teaspoons ground thyme
• + 1 ½ teaspoons dried basil add to pantry
• + 1 ½ cups grated Parmesan cheese add to pantry
• + 1 ½ cups shredded Cheddar cheese add to pantry
• + 1 ½ cups shredded mozzarella cheese add to pantry
• + nonstick cooking spray add to pantry
• + 1 ½ cups whipping cream add to pantry