Tuna Salad Zucchini Boats: Baked Vegetable Meal
Tuna salad zucchini boats are a Mediterranean dish that uses hollowed vegetable shells as a base for a savoury filling. You combine drained tuna with mayonnaise, celery, red onion, and parsley to create a creamy mixture. The boats are topped with shredded cheddar cheese and optional breadcrumbs before they are baked. This results in a meal that balances the softness of the tuna with the structured bite of roasted zucchini.
Control the thickness of the zucchini walls to ensure the dish works. Use a spoon to leave walls of 1 cm so they roast evenly and maintain a consistent bite. You must sprinkle salt onto the cut zucchini before baking to draw out moisture. Without this step, the boats will lose their crispness and become soggy. Drain the tuna thoroughly to prevent excess wetness from thinning the filling during the 25 minutes of cooking.
Tuna Salad Zucchini Boats: Baked Vegetable Meal
Recipe cardIngredients
Instructions
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Prepare the oven
Preheat your oven to 200°C (400°F). Line a baking sheet with parchment paper to prevent the zucchini from sticking to the metal.
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Hollow the zucchini
Wash the zucchini and halve them lengthwise. Use a spoon to scoop out the flesh, leaving walls of 1 cm to ensure they hold the filling without collapsing. Arrange them on the sheet and drizzle with olive oil, sea salt, and black pepper.
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Par-bake the boats
Bake the zucchini for 7 min. You want them to become slightly tender while still maintaining their shape for the filling.
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Mix the tuna filling
Combine the drained tuna, mayonnaise, diced celery, sliced onion, chopped parsley, salt, pepper, and lemon zest in a bowl. Mix until all components are well incorporated and creamy.
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Fill the boats
Remove the zucchini from the oven and let them cool for 2 min. Divide the tuna mixture evenly between the boats, placing about 40 g in each.
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Add the cheese
Sprinkle 30 g of shredded cheddar over the tuna in each boat. If you are using them, scatter the remaining 15 g of cheddar and 10 g of breadcrumbs over the top for extra texture.
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Bake until bubbly
Return the boats to the oven and bake for 15–18 min. The cheese should melt and bubble and the zucchini must be fully cooked through.
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Rest and serve
Take the boats out of the oven. Allow them to rest on the sheet for 5 min so the filling sets before you move them to a plate.
Ensure the zucchini walls are an even 1 cm thick. If the walls are too thin, the boats will collapse under the weight of the tuna. If they are too thick, the zucchini will remain hard while the cheese burns. Check the thickness with your finger before baking.
Getting the texture right
Scoop out the zucchini flesh to leave walls of exactly 1 cm. This thickness ensures the vegetable roasts evenly without collapsing. Drain your tuna thoroughly and press it with a paper towel to remove excess water. This prevents the filling from becoming soggy during the final bake.
Storing and reheating
Keep leftover boats in an airtight container in the fridge at less than 4°C for up to 2 days. For longer storage, freeze them at -18°C for up to 1 month. Thaw the boats overnight in the fridge before reheating them gently to maintain the texture.
Nutrition per serving
- Calories
- 185
- Protein
- 16.4 g
- Carbs
- 7.2 g
- Fat
- 11.8 g
- Fiber
- 2.1 g
- Sugar
- 3.5 g
Estimated, and offered as a guide rather than a medical figure.
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Questions people ask
Do you have to cook zucchini before making zucchini boats?
Yes. Bake the shells for 7 min at 200°C (400°F) before adding the filling. This pre-cooks the vegetable so the walls are tender by the time the cheese melts, preventing the zucchini from remaining raw.
What pairs well with zucchini boats?
Serve these boats with a fresh cucumber and tomato salad dressed in olive oil and lemon juice. A light green salad or quinoa also works well to create a balanced meal with added nutrients and texture.
What not to put in tuna salad?
Avoid adding excessive liquid ingredients or watery vegetables that have not been drained. Too much moisture will make the zucchini boats soggy and prevent the cheddar cheese from bubbling and browning correctly in the oven.
About the author
Makeva
Makeva is a home‑cook who loves crafting approachable meals that balance flavor and nutrition. She specializes in quick weeknight dinners, hearty soups, and wholesome baked goods, sharing step‑by‑step guidance and practical tips. Readers can expect clear instructions, adaptable recipes, and a friendly tone that encourages confidence in the kitchen.
