Spaghetti Squash Summer Veggies Pesto

Category: Plant-Based Takes on American Classics

These spaghetti squash boats are roasted to tender perfection and filled with a medley of vibrant summer vegetables like zucchini, bell pepper, cherry tomatoes, and sweet corn. The strands of squash blend with a generous spoonful of pesto, infusing the dish with aromatic, herby notes. After finishing with a final bake, the squash halves turn into flavorful vessels for a nourishing, gluten-free, and vegetarian meal, perfect for warm evenings. Enjoy this healthy combination as a main dish, garnished with extra pesto or Parmesan for extra richness. Ideal for sharing, these boats are easy to customize to taste.

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Updated on Sat, 17 May 2025 14:41:30 GMT
A person is scooping spaghetti squash with a spoon. Save
A person is scooping spaghetti squash with a spoon. | krispyrecipes.com

This vibrant spaghetti squash boats recipe is one of my favorite ways to showcase the flavors of summer. Roasted spaghetti squash becomes a tender, noodle-like base for a colorful blend of fresh vegetables and a generous dollop of pesto. It is a meal my family always requests as soon as zucchini and tomatoes hit their peak.

I remember making this dish for a summer neighborhood gathering using fresh basil from my garden. It was an instant hit with both kids and adults

Ingredients

  • Spaghetti squash: provides the perfect base with a naturally mild flavor and noodle like strands look for firm bright yellow squash with no soft spots
  • Cherry tomatoes: add bursty sweetness and color use ripe tomatoes that feel firm but not hard
  • Zucchini: brings moisture and gentle flavor select small to medium zucchini with glossy skin
  • Bell pepper: offers crunch and vibrancy red or yellow works well choose one that feels heavy for its size
  • Corn: gives a touch of sweetness fresh shaved from the cob is best but frozen will work in a pinch
  • Pesto: delivers big flavor from basil nuts and cheese you can use store bought or blend your own with lots of basil and quality olive oil
  • Olive oil: helps the roasting process and adds richness use a good extra virgin olive oil for best taste
  • Salt and pepper: tie the flavors together always taste and adjust to your liking

Step-by-Step Instructions

Prep the Squash:
Preheat your oven to four hundred degrees. Carefully slice the spaghetti squash in half lengthwise using a sharp knife. Scoop out the seeds with a spoon discarding the stringy center. Brush each cut side with olive oil then sprinkle liberally with salt and pepper. This step ensures the squash cooks evenly and the flavors can soak into the strands
Roast the Squash:
Place the squash halves cut side down on a baking sheet lined with parchment or foil. Roast for about thirty to thirty five minutes until the flesh is tender when pierced with a fork. The edges might lightly caramelize which adds great flavor
Prepare the Veggies:
While the squash roasts prepare the cherry tomatoes zucchini bell pepper and corn. Place all the diced vegetables in a large bowl and drizzle with olive oil. Add a pinch of salt and pepper then toss everything together so every piece is lightly coated and seasoned
Cool and Shred the Squash:
Once the squash is roasted take it out of the oven and let it cool just enough to handle. Flip the halves over and use a fork to gently scrape the flesh out in long strands but do not break the skin. This creates your noodle base for the filling
Combine and Mix:
Place the squash strands back in the bowl with the veggies and add the pesto. Stir everything together until every bite is well coated with sauce. Mixing while the squash is still warm helps the flavors meld
Fill and Bake the Boats:
Spoon the mixture evenly back into each squash shell piling it high. Return the filled boats to the oven and bake for ten more minutes. This allows the flavors to combine and the edges to get a little toasty
Serve and Garnish:
Remove the squash boats from the oven let them cool for a few minutes and serve warm. You can top with extra pesto or a sprinkle of cheese if you like. Each shell becomes its own edible bowl
Spaghetti Squash Boats with Summer Veggies and Pesto. Save
Spaghetti Squash Boats with Summer Veggies and Pesto. | krispyrecipes.com

My favorite part of this recipe is the pesto which makes even the simplest veggies taste special. I still remember the summer my kids discovered how much fun it is to scoop their own servings from the squash shells

Storage Tips

Once cooled store leftovers in an airtight container in the fridge for up to three days. You can reheat in the microwave or cover with foil and warm in a low oven. The flavors get even better as they sit and the veggies stay surprisingly crisp

Ingredient Substitutions

If you do not have zucchini try diced eggplant or extra bell pepper. Roasted broccoli or mushrooms also work well. For nut free pesto use seeds like sunflower and omit cheese for a vegan version. Frozen corn saves time and works perfectly fine here

Serving Suggestions

This dish works as a light main course but you can also pair it with crusty bread or a crisp green salad. For extra protein add grilled tofu chickpeas or chicken on top. Sometimes I serve it deconstructed for picky eaters letting everyone mix their favorite parts

A plate of food with a yellow squash and tomatoes. Save
A plate of food with a yellow squash and tomatoes. | krispyrecipes.com

Cultural Inspiration

While spaghetti squash is native to North and Central America the filling draws from classic Mediterranean flavors. The layering of pesto with roasted vegetables always reminds me of casual summer feasts with friends and garden harvests

Recipe FAQs

→ How do you prepare spaghetti squash for this dish?

Cut the squash in half lengthwise, remove the seeds, brush with olive oil, season, and roast until tender.

→ Can I use store-bought pesto?

Yes, both store-bought and homemade pesto work well. Choose nut-free options if needed for allergies.

→ What vegetables can be substituted?

Try eggplant, mushrooms, or spinach in place of any listed vegetable for a personalized touch.

→ Is this dish suitable for meal prep?

Absolutely! Assemble the boats in advance and reheat before serving for a quick, wholesome meal.

→ How can I add extra protein?

Include cooked chickpeas or add grilled chicken on top for a heartier option without sacrificing freshness.

Spaghetti Squash Summer Veggies Pesto

Spaghetti squash boats filled with fresh veggies and pesto offer a bright, wholesome main course.

Preparation Time
15 min
Cooking Time
45 min
Total Time
60 min

Recipe Category: Vegetarian & Vegan

Skill Level: Intermediate

Cuisine Type: American

Recipe Yield: 4 Servings

Dietary Options: Vegetarian, Gluten-Free

Ingredients

→ Vegetables

01 1 medium spaghetti squash
02 250 ml cherry tomatoes, halved
03 1 zucchini, diced
04 1 bell pepper, diced
05 250 ml corn, fresh or frozen

→ Condiments

06 250 ml pesto, store-bought or homemade

→ Seasoning

07 Salt, to taste
08 Black pepper, to taste
09 15 ml olive oil

Steps to Follow

Step 01

Preheat oven to 200°C. Halve the spaghetti squash lengthwise and remove seeds. Brush cut sides with olive oil and season with salt and pepper.

Step 02

Place squash halves cut-side down on a baking sheet and roast for 30–35 minutes until tender.

Step 03

Combine cherry tomatoes, zucchini, bell pepper, and corn in a large bowl. Drizzle with olive oil, season with salt and pepper, and toss to coat.

Step 04

Allow cooked squash to cool slightly. Use a fork to scrape out the flesh into strands.

Step 05

Mix the spaghetti squash strands with prepared vegetables and pesto until evenly combined.

Step 06

Spoon the mixture back into the squash shells. Return to oven and bake for an additional 10 minutes.

Step 07

Serve warm, garnished with extra pesto if desired.

Additional Notes

  1. For enhanced protein, add cooked chickpeas or grilled chicken. A sprinkle of Parmesan adds flavor for non-vegans.

Required Tools

  • Baking sheet
  • Mixing bowl
  • Fork

Allergen Information

Make sure to review each ingredient for potential allergens, and consult a healthcare professional if needed.
  • Contains nuts if using pesto with nuts.
  • Verify pesto and condiments for gluten-free certification if sensitive.

Nutritional Facts (Per Serving)

These details are for informational purposes and aren't a substitute for medical advice.
  • Calories: 220
  • Fats: 10 g
  • Carbohydrates: 30 g
  • Proteins: 5 g