Name: Tomato Feta Baked Spaghetti Squash Recipe
Prep time: 10 min
Cook time: 50 min
Total time: 1 h
Cuisine: Mediterranean
Ingredients: 1 large spaghetti squash, or two small ones; 2 cups grape tomatoes; 8 ounces baby bella mushrooms, halved or quartered; 4 cloves garlic, roughly chopped; 1/4 cup fresh chopped basil (divided); 8 ounces feta cheese; 1 tablespoon olive oil; 1/4 teaspoon red pepper flakes; 1/2 teaspoon fresh cracked black pepper; 1/2 lemon, juice

Jump to Recipe· 3.9 from 2 reviews

I am absolutely thrilled to share my Tomato Feta Baked Spaghetti Squash Recipe with you because it’s one of those dishes that feels comforting and elegant all at once. The blend of juicy grape tomatoes, earthy baby bella mushrooms, and tangy feta cheese roasted right alongside the naturally sweet and tender spaghetti squash creates a melody of flavors and textures I simply can’t resist. It’s light but satisfying, healthy yet indulgent, and every bite tells a story of simple ingredients transformed into something magical.

Why You’ll Love This Tomato Feta Baked Spaghetti Squash Recipe

What makes this Tomato Feta Baked Spaghetti Squash Recipe truly special to me is the balance of bright, fresh flavors and warm, creamy textures. The roasting process brings out the natural sweetness in the squash and tomatoes, while the feta cheese adds a punch of savory richness that perfectly complements the mild, slightly nutty vibe of spaghetti squash strands. I’ve found that the subtle heat from the red pepper flakes adds just enough kick without overpowering the dish, making it a flavor-packed but approachable meal.

Besides the incredible taste, I love how straightforward this recipe is to prepare. After microwaving the squash just enough to soften it for slicing, everything roasts in the oven simultaneously, which means less active time and more “I’m about to eat something amazing” time. This dish shines at weeknight dinners when I want something wholesome with minimal fuss, but it’s equally impressive to serve during holidays or casual dinner parties because it looks gorgeous and feels thoughtful without hours in the kitchen.

Ingredients You’ll Need

The image shows various ingredients arranged on a dark surface with a white marbled texture beneath. There are two halved yellow spaghetti squash shells with fibrous insides on the top right and top left. Nearby is a clear bowl full of red cherry tomatoes. Below the tomatoes, there is a small clear bowl containing peeled garlic cloves. To the left of that, a white bowl contains chopped green herbs. Below the herbs, a white bowl filled with quartered brown mushrooms is placed on a light pink cloth napkin. At the bottom center, a clear plate holds a rectangular block of white cheese sprinkled with black pepper. Half a lemon, cut side up, rests on the pink cloth near the cheese. The scene is bright and clean, showcasing fresh ingredients. Photo taken with an iphone --ar 4:5 --v 7

The beauty of this recipe is in its simplicity; each ingredient plays a crucial role in building the layers of flavor and texture. From the sweetness of grape tomatoes to the fresh brightness of basil, everything is chosen to keep this dish vibrant and balanced.

Spaghetti Squash: I recommend a large one for generous servings; it holds the strands beautifully after roasting.
Grape Tomatoes: Their sweetness intensifies when roasted, adding juicy pops of flavor.
Baby Bella Mushrooms: Halved or quartered, they provide earthy depth and meaty texture.
Fresh Basil: Freshly chopped for a fragrant herbal note that brightens the whole dish.
Garlic: Roughly chopped, it infuses the oil and vegetables with aromatic warmth.
Olive Oil: A tablespoon to roast the veggies and cheese for silky richness.
Red Pepper Flakes: Just a pinch to add subtle heat and complexity.
Fresh Cracked Black Pepper: I use about a half teaspoon to season with freshness and spice.
Feta Cheese: Eight ounces of crumbly, tangy feta melts beautifully and ties everything together.
Lemon Juice: Juice from half a lemon to brighten the final dish with a fresh zing.

Directions

Step 1: Preheat your oven to 375 degrees Fahrenheit. Begin by carefully poking several holes around the spaghetti squash with a knife, then microwave it for about 5 minutes to soften the tough skin just enough for easier slicing.

Step 2: Slice the squash horizontally, the short way across the middle, to reveal the seeds. Scoop out the seeds with a spoon, creating a perfect cavity for the roasted strands.

Step 3: Place the squash halves cut side down on a rimmed baking sheet and add 2 tablespoons of water to help steam while roasting. Put it on the top rack of the oven and roast for 20 to 30 minutes, until the strands are tender but still firm enough to pull away cleanly with a fork.

Step 4: While the squash roasts, take an 8 x 12 inch baking dish and place the feta cheese right in the center. Arrange the grape tomatoes, halved or quartered baby bella mushrooms, and the roughly chopped garlic around the feta.

Step 5: Drizzle the olive oil over the entire baking dish contents. Sprinkle with red pepper flakes, fresh cracked black pepper, and half of the chopped basil. Place this dish on the bottom rack of your oven and roast simultaneously with the squash for about 20 to 30 minutes, until the tomatoes burst, the mushrooms soften, and the feta develops a lovely golden top.

Step 6: Once the squash is roasted and cool enough to handle, use a fork to gently pull the strands away and place them into the baking dish with the roasted feta and vegetables. Add the remaining basil and carefully mix everything together until fully combined.

Step 7: Finish with a squeeze of fresh lemon juice to add a fresh brightness and garnish with additional basil if you like. Serve warm and enjoy!

Servings and Timing

This recipe comfortably serves 4 people as a main dish or 6 as a side. The prep time is around 10 minutes, with cook time roughly 30 to 35 minutes, making the total time approximately 40 to 45 minutes. There’s no required resting time, so you can serve it right away while it’s warm and inviting.

How to Serve This Tomato Feta Baked Spaghetti Squash Recipe

A white baking dish filled with a layered mix of yellow spaghetti squash strands, bright red cherry tomatoes, and pieces of brown mushrooms. The squash strands create a light, stringy base spread across the dish, while the cherry tomatoes are scattered evenly, adding vibrant pops of color. Small bits of white cheese and green herbs are mixed in and sprinkled on top, giving a textured look with some fresh basil leaves placed for garnish. The edges of the dish have browned bits from baking, adding a slightly crispy texture. The dish sits on a white marbled surface. photo taken with an iphone --ar 4:5 --v 7

I love serving this Tomato Feta Baked Spaghetti Squash Recipe hot or warm to showcase the melty feta and juicy roasted veggies at their best. It pairs beautifully with a crisp green salad dressed with lemon vinaigrette or a side of crusty garlic bread to soak up every bit of flavor. For something heartier, I often add a simple grilled chicken breast or roasted salmon alongside to transform the meal into a full, satisfying dinner.

For presentation, I like to plate it directly from the baking dish, garnishing with extra fresh basil leaves and a light dusting of cracked black pepper. If I’m feeling fancy, a sprinkle of toasted pine nuts adds a lovely crunch and elevates the rustic charm. When it comes to drinks, a chilled glass of Sauvignon Blanc or a sparkling water with lemon complements the bright citrus notes beautifully. It’s also perfect for weeknight dinners, casual weekend gatherings, or even holiday spreads where you want a colorful vegetarian option.

When portioning, I recommend serving about one quarter to one third of the squash per person, ensuring everyone gets a generous helping of those delicious strands loaded with roasted veggies and feta.

Variations

If you want to switch things up, I’ve found that swapping baby bella mushrooms for cremini or shiitake adds an earthy depth that pairs wonderfully with the tomatoes. For a dairy-free or vegan twist, try replacing feta with a plant-based cheese or a crumbly tofu seasoned with lemon juice and herbs to mimic the tang.

Feeling adventurous? Adding some kalamata olives or artichoke hearts before roasting adds a salty, briny punch that transforms the flavor profile. To make it spicier, you can increase the red pepper flakes or add a few dashes of smoked paprika for a smoky heat. Instead of baking, you can also try sautéing the vegetables on the stovetop and mixing them into the spaghetti squash for a quicker version with similar flavors.

Storage and Reheating

Storing Leftovers

I usually keep leftovers in an airtight container in the refrigerator for up to 3 days. Glass containers work best because they don’t absorb any odors, and you can easily see the contents. Before storing, make sure the dish has cooled completely to preserve freshness and prevent condensation.

Freezing

This dish can be frozen, although I recommend freezing it without the lemon juice to avoid any bitterness after thawing. Pack it tightly in a freezer-safe container or heavy-duty freezer bag, and it will keep well for up to 2 months. To thaw, move it to the refrigerator overnight for gentle defrosting.

Reheating

When reheating, I find the oven or toaster oven provides the best results to restore crisp edges and warm the filling evenly—set it around 350 degrees Fahrenheit for 15 to 20 minutes. Microwaving works in a pinch but can make the squash a bit soggy, so add a little extra basil or lemon juice afterward to brighten the flavors back up.

FAQs

Can I prepare this recipe ahead of time?

Absolutely! You can roast the spaghetti squash and the feta with vegetables up to a day in advance. Keep them refrigerated separately, then combine and warm just before serving to keep the textures fresh and flavors vibrant.

Is this dish gluten-free?

Yes, this Tomato Feta Baked Spaghetti Squash Recipe is naturally gluten-free since it uses only fresh vegetables and cheese without any wheat-based ingredients.

Can I make this recipe vegan?

Definitely! Replace the feta cheese with a vegan cheese alternative or seasoned crumbled tofu, and use olive oil as directed to keep it flavorful and plant-based.

What if I don’t have a microwave to soften the spaghetti squash first?

You can skip the microwave step and simply slice the raw squash in half and roast it cut side down on the baking sheet for about 40 to 50 minutes. It will take longer to cook but the flavors will be just as delicious.

How spicy is this dish?

The red pepper flakes add a gentle warmth that can easily be adjusted to your preference. If you’re sensitive to spice, you can reduce or omit them altogether without losing the overall flavor balance.

Conclusion

I can’t wait for you to try this Tomato Feta Baked Spaghetti Squash Recipe because it has become one of my absolute favorites for a reason. It’s a dish that satisfies both the soul and the palate with straightforward ingredients, cozy textures, and vibrant flavors. Whether you’re cooking for yourself, family, or friends, this recipe offers warmth and brightness in every forkful. Give it a go—you might just find your new weeknight staple!