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Smooth and Creamy Tuna Tart

Featured in Ocean fresh catch of the day.

This savory tart combines tuna, juicy tomatoes, and a luscious mustard cream sauce on a flaky handmade crust infused with olive oil.
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alicia in the kitchen
Updated on Wed, 12 Mar 2025 14:54:12 GMT
Savory tart topped with tomatoes, herbs, and chunks of meat, with a slice cut out. Pin it
Savory tart topped with tomatoes, herbs, and chunks of meat, with a slice cut out. | Tasteofsavor.com

This savory tuna and mustard tart is a perfect weeknight dinner solution. The homemade olive oil crust elevates this simple dish into something special. It's become a family favorite that disappears quickly at the dinner table.

Quick and Easy Tuna Tart

This Mediterranean-inspired tart combines pantry staples into an impressive meal. The blend of tender tuna, tangy mustard, and fresh vegetables creates wonderful flavors. It's equally delicious served warm or at room temperature, making it ideal for both dinner parties and casual meals.

Essential Ingredients

  • For the crust:
    • 200g all-purpose flour
    • 60g extra virgin olive oil
    • 65g cold water
    • Fresh herbs
  • For the filling:
    • 3 ripe tomatoes
    • 1 can tuna in water
    • 1 large sweet onion
    • 3 tablespoons whole grain mustard
    • 200ml heavy cream
    • 100g grated Emmental cheese
    • Extra virgin olive oil for drizzling

Step-by-Step Instructions

Prepare the Crust
Combine ingredients in a large bowl until a dough forms. Roll out and transfer to a tart pan.
Pre-bake
Preheat oven to 180°C and partially bake the crust.
Prepare Filling
Cut tomatoes into wedges and sauté onion until soft and translucent.
Assembly
Spread mustard on crust, layer with tuna and vegetables, top with cream and cheese.
Bake
Cook for 35 minutes until golden brown and bubbly.
Une quiche aux tomates cerises et au thon, avec une croûte dorée, est présentée sur une assiette. Pin it
Une quiche aux tomates cerises et au thon, avec une croûte dorée, est présentée sur une assiette. | Tasteofsavor.com

Chef's Tips

Black olives and fresh basil make excellent additions to this versatile tart. Serve with a crisp green salad for a complete meal. Leftovers keep well and are perfect for next-day lunch boxes.

Frequently Asked Questions

→ Can I prepare the crust beforehand?
Absolutely! You can make the crust a day ahead and keep it in the fridge. Resting it will make it easier to roll out.
→ Is it okay to use another type of mustard?
Feel free to swap in a mustard you like. Grainy mustard adds texture, while mild mustard brings a softer taste.
→ How do I keep the crust from getting soggy?
Pre-baking the tart base is key. It ensures a crispy crust under the filling.
→ Can this tart be frozen?
Yes, it freezes wonderfully after baking. Just heat it in the oven to bring the crust back to life.
→ What kind of cream works best?
Go for thick fresh cream to avoid a runny filling. Light cream works too but won’t be as rich.

Tuna Tart with Mustard

A rich savory tart filled with tuna, fresh tomatoes, and a creamy mustard sauce atop a homemade olive oil crust.

Prep Time
25 Minutes
Cook Time
55 Minutes
Total Time
80 Minutes
By: Alicia

Category: Seafood

Difficulty: Easy

Cuisine: French

Yield: 6 Servings (1 tart)

Dietary: ~

Ingredients

01 200 grams of flour.
02 65 grams of water.
03 60 grams of olive oil.
04 Your choice of herbs and spices.
05 3 fresh tomatoes.
06 1 can of tuna.
07 1 onion.
08 3 tablespoons of mustard.
09 200 milliliters of thick crème fraîche.
10 100 grams of shredded Emmental cheese.
11 A drizzle of olive oil for cooking.

Instructions

Step 01

Mix the flour, olive oil, water, and spices until you get a smooth, even dough ball.

Step 02

Roll the dough out, place it in the pan, and poke small holes in it with a fork.

Step 03

Bake the dough at 180°C for 15 minutes to prep it.

Step 04

Slice the tomatoes into wedges, chop the onion, and sauté it until soft and fragrant.

Step 05

Spread mustard on the dough, add tomatoes and onion, crumble the tuna over it, then layer it with crème fraîche and shredded cheese.

Step 06

Bake at 180°C for 35 to 40 minutes.

Notes

  1. To stop the crust from turning soggy, pre-baking is super important.
  2. Feel free to switch up the spices and herbs to match your liking.

Tools You'll Need

  • Tart pan.
  • Oven.
  • Rolling pin.

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Contains gluten.
  • Includes dairy products.
  • Includes fish.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 380
  • Total Fat: 22 g
  • Total Carbohydrate: 28 g
  • Protein: 18 g