Stuffed zucchini with tuna and tomato

A gentle, fiber-rich stuffed zucchini for balanced digestion

Protein Rich High Protein
88%

General Gut Health Match

This score is based on all ingredients included in the food recipe and provides a match score for the general population which is not personalized to your personal profile or gut microbiome test.

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Recipe description

Stuffed zucchini with tuna and tomato offers a comforting, fiber-conscious supper. The zucchini boats supply gentle, dietary fiber to support healthy digestion, while tomatoes bring polyphenols and moisture. Tuna adds lean protein for balanced meals without heaviness. This recipe also champions variety, with colorful vegetables and herbs to broaden flavors and fiber types, which can support a diverse gut microbiome when enjoyed as part of a varied eating pattern. Easy to prepare, friendly for weeknights, and adaptable to taste.

July 23, 2026
Stuffed zucchini with tuna and tomato
Prep 15 min Cook 40 min Medium

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Why this recipe fits you

  • Rich in fiber from zucchini, tomato, onion, and herbs.
  • Colorful plant ingredients provide polyphenols and olive oil adds healthy fats.
  • Lean tuna provides protein; simple, weeknight-friendly preparation.

Gut Health Score

🌿 Fiber diversity
75
🍇 Polyphenol density
70
🧬 Diversity support
85
🛡️ Inflammation support
82
🫧 Fermentation support
0
⚖️ Blood sugar stability
80

Ingredients

Zucchini
2 piece
Zucchini
Tuna
200 gram
Tuna
Tomato
1 piece
Tomato
Onion
0.5 piece
Onion
Garlic
2 clove
Garlic
Oil, olive
2 tablespoon
Oil, olive
Basil
1 teaspoon
Basil
Oregano
0.5 teaspoon
Oregano
Parsley
2 tablespoon
Parsley
Salt
0.5 teaspoon
Salt
Pepper
0.25 teaspoon
Pepper

Instructions

1

Preheat oven to 200°C (400°F). Cut zucchini in half lengthwise and scoop out seeds to create boats.

2

Brush zucchini boats with 1 tablespoon olive oil, season with salt and pepper, and place on baking sheet.

3

Bake zucchini for 15-20 minutes until slightly softened.

4

While zucchini bakes, heat remaining olive oil in a pan over medium heat. Add chopped onion and garlic, cook until softened.

5

Add diced tomato, basil, and oregano to the pan. Cook for 5 minutes until tomatoes break down slightly.

6

Flake tuna and add to the tomato mixture. Stir to combine and heat through.

7

Remove zucchini from oven and fill each boat with the tuna-tomato mixture.

8

Return to oven and bake for another 10-15 minutes until zucchini is tender and filling is heated through.

9

Garnish with fresh parsley before serving.

Nutrition

340 kcal Calories
25 g Protein
20 g Carbohydrates
4 g Fiber
8 g Sugar
14 g Fat
2 g Saturated fat
1.4 g Salt

FAQ

Is this recipe gluten-free?
Yes. The ingredients are naturally gluten-free (zucchini, tuna, tomato, onion, garlic, olive oil, herbs). If you add any extras, check their gluten content.
Can I make this vegetarian?
Yes. Substitute the tuna with chickpeas, white beans, or sautéed mushrooms for a similar texture and protein; adjust the seasoning.
How long does it take from start to finish?
About 40–50 minutes total: 15–20 minutes to prep and pre-bake the zucchini, 10–15 minutes to fill and bake the second time, plus 5 minutes for garnish.
What kind of tuna should I use?
Tuna packed in oil or in water both work. Drain well. If using tuna in water, you may want to add a little extra olive oil during cooking.
Can I prepare this in advance?
Yes. You can pre-bake the zucchini halves, then fill and bake later, or prepare the tomato–tuna mixture and fill just before baking.
How should I store leftovers?
Refrigerate in an airtight container for 2–3 days. Reheat gently until hot. The stuffed zucchini can be frozen, but texture may be affected.
What should I serve it with?
Pair with a green salad, steamed vegetables, or a small portion of quinoa or brown rice.
How can I tell when the zucchini is tender?
The zucchini is tender when a knife slides in easily and the filling is hot throughout.
Are there substitutions for dietary needs?
Yes. For a vegetarian version, replace tuna with beans; the dish is naturally gluten-free and adaptable with different herbs.

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