Variations & Substitutions
Spaghetti squash. Use a medium-sized spaghetti squash to get the perfect portion needed for this recipe. Properly cut it in half then cook spaghetti squash halves in the microwave before shredding it into strands. White button mushrooms. You can use cremini, portobello, or shiitake mushrooms as a substitute. Fresh spinach. If you don’t have fresh spinach, you can use other leafy greens like kale, Swiss chard, or collard greens. Ricotta cheese. You can substitute ricotta cheese with cottage cheese or cream cheese for a similar creamy texture. Mozzarella cheese. You can use shredded fontina, provolone, gruyere, or cheddar cheese as a substitute.
📖 How to make spaghetti squash casserole
Step 8:Cover the casserole dish with aluminum foil and place it in the preheated oven. Bake for 20-25 minutes, then remove the foil and bake for an additional 10-15 minutes, or until the top is golden and bubbly. While oven is preheating, cut the spaghetti squash lengthwise in half, scoop out the seeds, and lightly season with salt and pepper. Then, place it cut side down in a microwave-safe dish, and microwave on high for 7-12 minutes (or until fork tender). Don’t want to microwave? You can also make spaghetti squash in the Instant pot, air fryer or even slow cooker.
Season the spaghetti squash before cooking. This adds flavor to the squash itself, enhancing the overall taste of the casserole. Let the mushrooms sit without stirring for a few minutes at the beginning of sautéing. This helps them brown and develop flavor. Allow the casserole to rest for a few minutes after baking. This helps the layers set, making it easier to cut and serve without falling apart.
🍴Storage and reheating suggestions
Store leftover spaghetti squash casserole in an airtight container in the fridge for up to 3-4 days. Reheat individual servings in the microwave or oven until heated through. To freeze, allow the casserole to cool completely, then wrap it tightly in plastic wrap or aluminum foil and place it in a freezer-safe container or bag. It can be frozen for up to 2-3 months. To reheat, thaw it overnight in the refrigerator or place it at room temperature for a few hours and then bake it in the oven until heated through.
📖 Recipe
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