Cheesy Pesto Zucchini Boats

Featured in: Vegetarian Picks

This dish features tender zucchini halves scooped and filled with a rich basil pesto, combined with cherry tomatoes, red onion, garlic, and cheese. Layers of mozzarella and Parmesan bake to a golden, bubbly finish, creating a satisfying vegetarian option with Mediterranean flavors. Optional nuts and quinoa add texture and heartiness, while a drizzle of olive oil enhances the overall taste. Perfect for easy, vibrant meals in under an hour.

Updated on Mon, 22 Dec 2025 08:04:00 GMT
Steaming, cheesy pesto zucchini boats with tender zucchini and a beautiful golden crust, ready to serve. Save
Steaming, cheesy pesto zucchini boats with tender zucchini and a beautiful golden crust, ready to serve. | ovenharmony.com

Last summer, I had four overgrown zucchini from a neighbor's garden sitting on my counter, and I knew I had to do something before they turned into baseball bats. I'd been craving something cheesy and fresh, so I hollowed them out, slathered the insides with pesto I had in the fridge, and stuffed them with whatever vegetables I could find. The smell of bubbling mozzarella and toasted garlic filled the kitchen, and when I pulled them out of the oven, golden and gorgeous, I knew I'd stumbled onto something special.

I made these for a weekend dinner with friends who were trying to eat more plants, and they devoured them. One friend scraped every bit of cheese off the baking dish with a piece of bread, and another asked if I could teach her how to make them. It became our go-to potluck dish that summer, and I loved how everyone could customize their boat with extra toppings.

Ingredients

  • Zucchini: Medium-sized ones work best because theyre easier to hollow out and hold their shape when baked, plus they dont get watery like the giant ones do.
  • Cherry tomatoes: They burst and release sweet juice into the filling, which balances the richness of the cheese beautifully.
  • Red onion: A little sharpness cuts through all that creaminess, and I learned to chop it fine so no one gets a huge onion bite.
  • Garlic: Fresh minced garlic is worth it here, it blooms in the oven and perfumes the whole dish.
  • Basil pesto: This is the soul of the recipe, use a good one or make your own if you have fresh basil lying around.
  • Quinoa or rice: Optional but it makes the boats more filling, and leftovers reheat like a dream.
  • Parmesan cheese: Adds a salty, nutty backbone that ties everything together.
  • Mozzarella cheese: The gooey, golden top layer that makes you want to dive in with a fork immediately.
  • Ricotta or cottage cheese: Keeps the filling creamy and moist, I prefer ricotta for smoothness but cottage cheese works in a pinch.
  • Pine nuts or walnuts: A little crunch on top is a game changer, and toasting them first makes them even better.
  • Olive oil: Brushing the zucchini shells prevents them from drying out and adds a subtle richness.

Instructions

Prep the oven and dish:
Set your oven to 400 degrees F and line a baking dish with parchment or give it a light grease. This keeps cleanup easy and prevents sticking.
Hollow out the zucchini:
Slice each zucchini lengthwise and use a spoon to scoop out the center, leaving a sturdy quarter-inch wall so they hold up during baking. Chop the scooped flesh finely and save it for the filling.
Season the boats:
Arrange the zucchini halves cut side up in your dish, brush them with olive oil, and sprinkle with salt and pepper. This step adds flavor and helps them cook evenly.
Mix the filling:
In a bowl, combine the chopped zucchini, tomatoes, onion, garlic, pesto, quinoa or rice if using, ricotta or cottage cheese, and half the Parmesan. Season with salt and pepper and stir until everything is well blended.
Stuff and top:
Spoon the filling generously into each boat, then scatter mozzarella over the top and finish with the remaining Parmesan and nuts if youre using them. Dont be shy with the cheese.
Bake until golden:
Slide the dish into the oven and bake for 20 to 25 minutes until the zucchini is fork-tender and the cheese is bubbling and starting to brown. The kitchen will smell incredible.
Cool and serve:
Let the boats rest for a few minutes so the filling sets and you dont burn your tongue. Garnish with fresh basil if you have it.
Melting mozzarella atop flavorful cheesy pesto zucchini boats, a delicious vegetarian recipe bursting with fresh flavors. Save
Melting mozzarella atop flavorful cheesy pesto zucchini boats, a delicious vegetarian recipe bursting with fresh flavors. | ovenharmony.com

One evening, I served these to my mom, who usually turns her nose up at anything too healthy-looking. She ate two boats and asked for the recipe, which felt like winning a cooking award. That night, zucchini boats stopped being just a way to use up garden surplus and became a dish I actually looked forward to making.

Making It Your Own

You can toss in chopped spinach, diced bell peppers, or even sliced olives to the filling for extra flavor and color. I once added sun-dried tomatoes and it felt like a fancy Italian restaurant dish. If you want it heartier, stir in cooked ground turkey or crumbled sausage, and if you want it vegan, swap in cashew cheese and skip the Parmesan.

Storing and Reheating

These boats keep beautifully in the fridge for up to three days in an airtight container. I reheat them in a 350-degree oven for about 15 minutes until warmed through, and they taste just as good as the first day. Microwaving works too, but the cheese wont get that golden crisp on top.

Serving Suggestions

I love pairing these with a crisp green salad dressed in lemon vinaigrette and a hunk of crusty bread to soak up any extra pesto and cheese. A chilled Sauvignon Blanc or a light Italian red like Valpolicella makes it feel like a real occasion, even on a Tuesday night.

  • Serve them as a main with a grain salad on the side for a complete meal.
  • Halve the boats again for a party appetizer that people can pick up and eat with their hands.
  • Top with a drizzle of balsamic glaze right before serving for a sweet tangy finish.
A close-up view of golden-brown cheesy pesto zucchini boats, presenting a comforting and satisfying Mediterranean dinner. Save
A close-up view of golden-brown cheesy pesto zucchini boats, presenting a comforting and satisfying Mediterranean dinner. | ovenharmony.com

These boats have become my go-to when I want something that feels indulgent but is secretly packed with vegetables. Every time I pull them out of the oven, I remember that summer evening when a little creativity turned surplus zucchini into something I genuinely crave.

Recipe FAQ

Can I prepare this dish ahead of time?

Yes, you can assemble the filled zucchini boats and refrigerate them for a few hours before baking to save time.

What are some good substitutes for the cheeses used?

For dairy-free versions, try plant-based mozzarella and ricotta alternatives or use cashew cheese to maintain creaminess.

How do I ensure the zucchini cooks evenly?

Slice zucchini into even halves and bake at 400°F until tender. Scooping out the center helps achieve thorough cooking.

Can I add other vegetables to the filling?

Absolutely, chopped spinach, bell peppers, or olives can be mixed in to enhance flavor and variety.

Is this dish suitable for gluten-free diets?

Yes, when using gluten-free pesto and quinoa or rice, the dish remains gluten-free.

Cheesy Pesto Zucchini Boats

Zucchini halves filled with basil pesto, vegetables, and melted cheese for a tasty main or side dish.

Prep duration
20 min
Cook duration
25 min
Complete duration
45 min
Created by Claire Johnson

Classification Vegetarian Picks

Complexity Easy

Heritage Mediterranean

Output 4 Portions

Dietary considerations Meat-free, Without gluten

Components

Vegetables

01 4 medium zucchini
02 1 cup cherry tomatoes, halved
03 1/2 small red onion, finely chopped
04 1 clove garlic, minced

Pesto & Filling

01 1/3 cup basil pesto (store-bought or homemade)
02 1/2 cup cooked quinoa or rice (optional)
03 1/4 cup grated Parmesan cheese
04 1/2 cup shredded mozzarella cheese
05 1/2 cup ricotta or cottage cheese
06 2 tablespoons pine nuts or chopped walnuts (optional)
07 Salt and pepper, to taste
08 Olive oil, for drizzling

Directions

Phase 01

Prepare oven and baking dish: Preheat oven to 400°F. Line a baking dish with parchment paper or lightly grease it.

Phase 02

Hollow zucchini halves: Slice zucchini lengthwise and scoop out the center, leaving a 1/4-inch thick shell. Finely chop reserved flesh.

Phase 03

Season zucchini boats: Place zucchini halves cut side up in baking dish. Brush with olive oil and season with salt and pepper.

Phase 04

Combine filling ingredients: In a bowl, mix chopped zucchini flesh, cherry tomatoes, red onion, garlic, pesto, cooked quinoa or rice if using, ricotta or cottage cheese, and half the Parmesan. Season to taste.

Phase 05

Fill zucchini and add cheese: Spoon filling evenly into zucchini shells. Top with shredded mozzarella and remaining Parmesan. Sprinkle pine nuts or walnuts if desired.

Phase 06

Bake zucchini boats: Bake for 20 to 25 minutes until zucchini is tender and cheese is melted and golden.

Phase 07

Rest and serve: Allow to cool slightly before serving. Garnish with fresh basil if preferred.

Necessary tools

  • Chef's knife
  • Spoon for scooping
  • Mixing bowl
  • Baking dish
  • Oven

Allergy details

Review each component for potential allergens and consult healthcare professionals if you're unsure about ingredients.
  • Contains dairy (Parmesan, mozzarella, ricotta/cottage cheese)
  • Contains tree nuts (pine nuts or walnuts if used)

Nutritional information (each portion)

These values are approximate guidelines only and shouldn't replace professional medical guidance.
  • Energy: 255
  • Fats: 15 g
  • Carbohydrates: 16 g
  • Proteins: 13 g