Crustless Tuna and Tomato Quiche

A light, protein-rich, and effortless crustless quiche made with flaky tuna, juicy tomatoes, creamy eggs, and melted cheese. Perfect for brunch, lunch, or a simple weeknight dinner, this French-inspired recipe delivers all the flavor of a traditional quiche without the extra calories of a pastry crust.

Why You'll Love This Recipe

Easy to prepare with simple pantry ingredients

High in protein and naturally gluten-free

Ideal for meal prep and make-ahead lunches

Light yet satisfying

Ready in under an hour

Prep Time

15 minutes

Cook Time

35–40 minutes

Total Time

50–55 minutes

Servings

6 servings

Ingredients

200 g (7 oz) canned tuna in water, drained and flaked

3–4 ripe tomatoes, thinly sliced

3 large eggs

200 ml (¾ cup + 1 tablespoon) heavy cream or crème fraîche

100 g (1 cup) grated Gruyère, Emmental, or similar cheese

1 tablespoon Dijon mustard

Fine sea salt, to taste

Freshly ground black pepper, to taste

Optional: 1 teaspoon dried herbs (thyme, oregano, or Herbes de Provence)

Instructions

Step 1: Prepare the Oven

Preheat the oven to 180°C (350°F). Lightly grease a 9-inch (23 cm) quiche dish or pie pan.

Step 2: Arrange the Filling

Spread the flaked tuna evenly across the prepared baking dish. Arrange the tomato slices over the tuna in a single layer.

Step 3: Make the Custard

In a large mixing bowl, whisk together the eggs, cream, and Dijon mustard until smooth. Season with salt and pepper to taste. Stir in half of the grated cheese.

Step 4: Assemble

Pour the egg mixture evenly over the tuna and tomatoes. Sprinkle the remaining cheese over the top. If desired, add a pinch of dried herbs for extra flavor.

Step 5: Bake

Bake for 35–40 minutes, or until the quiche is golden brown on top and the center is set.

Step 6: Cool and Serve

Allow the quiche to rest for 5–10 minutes before slicing. Serve warm or at room temperature with a fresh green salad.

Chef's Tips

Pat the tomato slices dry with paper towels before assembling to prevent excess moisture.

For a richer flavor, use Gruyère cheese.

Add sautéed onions, spinach, or bell peppers for extra texture and nutrition.

Leftovers can be refrigerated for up to 3 days and reheated gently before serving.

Storage

Refrigerator: Store in an airtight container for up to 3 days.

Freezer: Freeze individual slices for up to 2 months. Thaw overnight in the refrigerator before reheating.

Nutrition Highlights

This crustless tuna and tomato quiche is packed with protein from tuna, eggs, and cheese while remaining lighter than a traditional quiche thanks to the absence of pastry. It's a delicious low-carb option for breakfast, lunch, or dinner.

A simple French classic that's creamy, cheesy, and full of fresh tomato flavor in every bite. 🍅🧀🐟