Spaghetti Squash Casserole
A comforting and cheesy spaghetti squash casserole that combines tender roasted squash with layers of mozzarella and rich spaghetti sauce. Perfect for a family dinner or a low-carb meal option, it offers warm, cheesy flavors in a satisfying dish suitable for any occasion.
Ingredients
Instructions
- Preheat oven to 350°F.
- Place whole spaghetti squash in a large pot with enough water to cover.
- Bring to a boil and simmer, covered, for 30 minutes or until skin is tender.
- Remove the squash from water and let it cool.
- When cool enough to handle, cut the squash in two and scrape out the inside, discarding seeds and stringy center part.
- Butter a casserole dish.
- Layer the squash, mozzarella slices, and spaghetti sauce, repeating layers.
- Top the casserole with Parmesan cheese.
- Bake until heated through and cheese is melted, about 20 minutes.
- Serve hot.
Tips & Substitutions
To enhance the flavor, consider adding sautéed vegetables like bell peppers or onions between the layers. If you're short on time, you can use pre-cooked or canned spaghetti squash. For a twist, try substituting the mozzarella with a blend of Italian cheeses or using a marinara sauce instead of traditional spaghetti sauce.
Serving Suggestions
This spaghetti squash casserole pairs beautifully with a fresh green salad or garlic bread for a complete meal. Consider serving it alongside Dill Dip For Vegetables for a nice appetizer. It's also an excellent option for potlucks and gatherings, where it can be a hit among vegetarians and meat-lovers alike.
Storage & Reheating
Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, place the casserole in a preheated oven at 350°F for about 15-20 minutes, or until warmed through. You can also microwave individual portions for a quicker option, but the oven method helps maintain the texture.
Nutrition & Diet Analysis (per serving)
Each serving of Spaghetti Squash Casserole contains roughly 470 calories, with 35g protein, 18g carbohydrates, and 29g fat. It is an excellent source of calcium (75% of the Daily Value), protein (70% of the Daily Value), and vitamin A (30% of the Daily Value). Note that it is relatively high in sodium, at 1316mg per serving (57% of the Daily Value).
Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.
* % Daily Values based on a 2,000 calorie diet (FDA 2020).
Frequently Asked Questions
Can I make this casserole ahead of time?
Yes, you can prepare the casserole a day in advance. Assemble it in the dish and cover it tightly with plastic wrap or foil. When ready to bake, simply remove the cover and heat it in the oven, adding a few extra minutes to the baking time.
Can I freeze the spaghetti squash casserole?
Absolutely! To freeze, let the casserole cool completely, then cover it tightly with foil or plastic wrap. It can be stored in the freezer for up to 3 months. Thaw in the refrigerator overnight before reheating in the oven.
What can I use instead of spaghetti sauce?
You can use a variety of sauces in place of spaghetti sauce, such as marinara, pesto, or even a homemade tomato sauce. For a creamier texture, consider using Alfredo sauce or a white sauce, which will give the casserole a different flavor profile.
Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).