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Easy Spaghetti Squash Casserole: 1 Dreamy Bake

Oh, hey there! If you’re anything like me, you’re always on the hunt for those comforting meals that don’t weigh you down, right? Something that feels like a warm hug but is actually good for you. Well, you’ve landed in the perfect spot because I’ve got just the thing: my ultimate spaghetti squash casserole. It’s ridiculously easy, packed with goodness, and uses one of my favorite fall stars – spaghetti squash! Growing up in North Carolina, we always cooked with what was fresh, and this dish just screams cozy, seasonal eating to me. It’s become a go-to in my kitchen, and I just know you’re going to love it too.

Why You’ll Love This Spaghetti Squash Casserole

Seriously, this dish is a winner on so many levels, and I think that’s why it’s such a hit with everyone who tries it. If you’re scrolling through Pinterest looking for something special, here’s why this spaghetti squash casserole should be your next kitchen adventure:

  • It’s SO Healthy! We’re talking about getting a good dose of veggies without feeling like you’re missing out on comfort food. It’s naturally packed with nutrients.
  • Low-Carb Friendly: If you’re watching carbs, this bake is a dream. It swaps out traditional pasta for spaghetti squash, keeping things light and satisfying.
  • Gluten-Free Goodness: Perfect for anyone avoiding gluten, this casserole fits right into your lifestyle without sacrificing flavor.
  • Seriously Easy to Make: I’m all about keeping things simple, and this recipe delivers. You can whip it up on a weeknight without a fuss.
  • Family-Approved Flavor: Even the pickiest eaters usually gobble this up! It’s cheesy, saucy, and just plain delicious.
  • Meal Prep Magic: Make a batch on Sunday, and you’ve got healthy lunches or dinners ready to go all week. It reheats beautifully!
  • Bursting with Flavor: With savory marinara, melty cheese, and tender spaghetti squash, every bite is a little taste of heaven.

Gathering Your Ingredients for Spaghetti Squash Casserole

Alright, let’s get our mise en place ready! This is where the magic starts to happen. You don’t need anything too fancy, just good, honest ingredients that come together to make something truly special. For this wonderful cheesy spaghetti squash casserole, here’s what you’ll want to gather:

  • 1 medium spaghetti squash – pick one that feels nice and firm!
  • 1 tablespoon olive oil – just a little drizzle for roasting.
  • 1 pound cooked chicken, shredded – I often use rotisserie chicken for this, it’s such a time saver!
  • 1 cup marinara sauce – use your favorite jarred sauce or homemade if you have some.
  • 1 cup shredded mozzarella cheese – gotta have that gooey, melty cheese pull!
  • 1/2 cup grated Parmesan cheese – this adds a nice salty kick.
  • 1 teaspoon dried Italian seasoning – a little blend of herbs goes a long way.
  • Salt and pepper to taste – don’t forget to season it up!

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See? Pretty straightforward. Having everything ready to go makes the actual assembly so much smoother, and trust me, you’ll appreciate it when you’re in the zone.

Ingredient Notes and Substitutions for Spaghetti Squash Casserole

Now, let’s chat a bit about these ingredients. I love using rotisserie chicken because it’s already cooked and seasoned, but feel free to boil or bake some chicken breasts and shred them yourself. If you’re going for a vegetarian spaghetti squash casserole, just skip the chicken and toss in some sautéed mushrooms, spinach, or diced bell peppers. They add great flavor and texture! When it comes to cheese, while mozzarella and Parmesan are my go-tos for that classic flavor, feel free to experiment. A sharp cheddar or a Monterey Jack would be delicious too. Just remember, if you’re aiming for a super low carb spaghetti squash bake, be mindful of any added sugars in your marinara sauce. Some brands can sneak them in! For more information on healthy eating, you might find resources on nutrition helpful.

Step-by-Step Guide to Making Spaghetti Squash Casserole

Alright, let’s get this party started! Making this easy spaghetti squash casserole recipe is really straightforward, and honestly, a little bit fun. Don’t worry if you haven’t worked with spaghetti squash before; it’s not as intimidating as it looks. I always tell folks, don’t be afraid to get in there and make a little mess – that’s part of the joy of cooking!

Preparing the Spaghetti Squash

First things first, we need to get that squash ready. Preheat your oven to a nice hot 400°F (200°C). Now, grab your spaghetti squash. I usually just give it a good scrub under the tap. The trickiest part can be cutting it, so be careful! I like to cut mine right in half lengthwise, like a little boat. Use a sturdy spoon to scoop out all those seeds and stringy bits – think of it like getting the core out of an apple. Once they’re prepped, place them cut-side down on a baking sheet. I drizzle a tiny bit of olive oil over the cut sides, but you don’t have to. Pop them in the oven and let them roast for about 40-50 minutes. You’ll know they’re ready when they’re tender when you can easily pierce the skin with a fork. Let them cool just enough so you can handle them – we don’t want any burnt fingers!

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Assembling Your Spaghetti Squash Casserole

Once your squash is cool enough to touch, use a fork to scrape out the flesh. It’ll come away in those lovely spaghetti-like strands – it’s really neat to see! Toss those strands into a big mixing bowl. Now, add in your cooked, shredded chicken if you’re using it. Pour in that marinara sauce, sprinkle in the shredded mozzarella and grated Parmesan, and add your Italian seasoning, salt, and pepper. Give it all a good stir until everything is nicely combined and coated. Make sure to get all those flavors mixed in there; it’s the key to a delicious casserole!

Baking Your Spaghetti Squash Casserole to Perfection

Now for the final stretch! Grab a greased baking dish – any standard casserole dish will do. Pour your spaghetti squash mixture into the dish and spread it out evenly. Pop it back into that 400°F (200°C) oven. You’ll want to bake it for about 20-25 minutes. The goal here is to get everything heated through and nice and bubbly, with that cheese all melty and golden on top. Seriously, the smell that fills your kitchen during this last step is just amazing. It’s that perfect blend of savory sauce, herbs, and cheese!

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Tips for a Perfect Spaghetti Squash Casserole Every Time

You know, I’ve made this spaghetti squash casserole so many times, and I’ve picked up a few little tricks that really make it shine. For starters, don’t be afraid to roast your spaghetti squash ahead of time! I often do it the day before, let it cool completely, and then store the strands in an airtight container in the fridge. This makes assembling your meal prep spaghetti squash casserole super quick on busy weeknights. Also, taste as you go! My tip to adjust seasonings is crucial – some marinara sauces are saltier than others, and your chicken might already be seasoned. So, give it a little taste before it goes into the oven and add a pinch more salt or pepper if needed. And remember, make sure that squash is *really* tender when you roast it; that’s the secret to getting those perfect, noodle-like strands! For more dinner recipes, check out our other posts.

Serving and Storing Your Spaghetti Squash Casserole

This spaghetti squash casserole is fantastic all on its own, but it also pairs beautifully with a simple side salad or some crusty bread if you’re feeling it. It’s truly a comforting dish, making it a perfect choice for a cozy fall spaghetti squash casserole night. Now, if you happen to have any leftovers (which is rare in my house, but it happens!), they store like a dream. Just let the casserole cool down completely, then pop it into an airtight container and keep it in the fridge for up to 3 or 4 days. To reheat, I usually pop a portion in the microwave for a minute or two until it’s warmed through, or you can gently warm it in a low oven (around 300°F or 150°C) for about 10-15 minutes. It comes out just as delicious!

Frequently Asked Questions about Spaghetti Squash Casserole

Got questions? I’ve got answers! It’s totally normal to want to know a bit more before diving in. Here are a few things folks often ask me about this yummy spaghetti squash casserole:

  • Can I make this spaghetti squash casserole vegetarian? Absolutely! That’s one of the best things about this recipe. Just leave out the chicken and load it up with extra veggies. Sautéed mushrooms, zucchini, spinach, or even some roasted bell peppers work wonderfully. They add great texture and flavor, making for a fantastic vegetarian spaghetti squash casserole.
  • How do I store leftovers? Oh, it stores like a charm! Once it’s cooled down, just pop any extra casserole into an airtight container and keep it in the fridge for about 3-4 days. It’s perfect for those quick lunches or dinners when you don’t want to cook.
  • What are some good variations for this spaghetti squash casserole? You can get so creative with this! If you’re craving something a bit richer, try adding a dollop of cream cheese or a splash of heavy cream to the mixture before baking for a super creamy spaghetti squash casserole. You could also swap out the marinara for a pesto sauce or a creamy Alfredo for a whole new flavor profile! For more casserole ideas, explore our other recipes.

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Nutritional Estimates for Spaghetti Squash Casserole

Now, I’m no registered dietitian, so these are just my best guesses based on the ingredients I typically use! A serving of this spaghetti squash casserole usually comes in around 350 calories, with about 15g of fat, 30g of protein, and 25g of carbs. You’ll also get a good dose of fiber, roughly 5g. Keep in mind that these numbers can change a bit depending on the brands of marinara sauce and cheese you use, or if you add extra veggies! For a deeper understanding of nutritional information, consulting a registered dietitian is recommended.

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spaghetti squash casserole

Easy Spaghetti Squash Casserole: 1 Dreamy Bake


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  • Author: recipesguides.net
  • Total Time: 1 hour 5 minutes
  • Yield: 4 servings 1x
  • Diet: Gluten Free

Description

A comforting and healthy casserole made with spaghetti squash, cheese, and your favorite additions. This easy recipe is perfect for a weeknight meal or meal prep.


Ingredients

Scale
  • 1 medium spaghetti squash
  • 1 tablespoon olive oil
  • 1 pound cooked chicken, shredded (optional)
  • 1 cup marinara sauce
  • 1 cup shredded mozzarella cheese
  • 1/2 cup grated Parmesan cheese
  • 1 teaspoon dried Italian seasoning
  • Salt and pepper to taste

Instructions

  1. Preheat your oven to 400°F (200°C).
  2. Cut the spaghetti squash in half lengthwise and scoop out the seeds.
  3. Place the squash cut-side down on a baking sheet.
  4. Roast for 40-50 minutes, or until tender.
  5. Let the squash cool slightly, then shred the flesh with a fork.
  6. In a large bowl, combine the shredded spaghetti squash, cooked chicken (if using), marinara sauce, mozzarella cheese, Parmesan cheese, Italian seasoning, salt, and pepper.
  7. Transfer the mixture to a greased baking dish.
  8. Bake for 20-25 minutes, or until heated through and bubbly.

Notes

  • For a vegetarian option, omit the chicken and add your favorite vegetables like spinach, mushrooms, or bell peppers.
  • You can prepare the spaghetti squash ahead of time to save on cooking time.
  • Adjust seasonings to your preference.
  • Prep Time: 15 minutes
  • Cook Time: 50 minutes
  • Category: Dinner
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 serving
  • Calories: 350
  • Sugar: 8g
  • Sodium: 600mg
  • Fat: 15g
  • Saturated Fat: 7g
  • Unsaturated Fat: 8g
  • Trans Fat: 0g
  • Carbohydrates: 25g
  • Fiber: 5g
  • Protein: 30g
  • Cholesterol: 80mg

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