Sardine Quiche Recipe: Savory Seafood Brunch

December 05, 2024

Sardine Quiche Recipe

Sardine quiche is a bold, savory take on a classic brunch dish. The richness of sardines pairs naturally with a creamy egg custard, wilted spinach, cherry tomatoes, and melted Gruyère in a flaky pre-baked crust -- a combination that works because the acidity of the tomatoes and the brininess of the sardines cut through the richness of the cream and cheese. It's equally good warm from the oven, at room temperature for brunch, or cold the next day. Makes 6-8 slices; holds well in the refrigerator for 3 days.

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Why Sardine Quiche?

• Nutritionally complete: Eggs + sardines + cream + vegetables cover protein, omega-3 EPA+DHA, calcium, vitamin B12, vitamin D, and fiber in one dish.
• Make-ahead friendly: Bakes in 30-35 minutes; holds in the refrigerator for 3 days; reheats well. One of the better batch-cook options in the sardine recipe lineup.
• Versatile: Brunch, lunch, or dinner. Serve warm, room temperature, or cold.
• Sustainable: Sardines are among the most environmentally responsible seafood choices, rated a Best Choice by Seafood Watch.

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Ingredients

Filling (serves 6-8):

• Sardines (1 can, ~120g drained): Wild-caught in olive oil -- drain but reserve the oil for sautéing.
• Eggs (4 large): The custard base.
• Heavy cream (½ cup): For a rich, set custard. Whole milk works for a lighter result; half-and-half is a middle ground.
• Fresh spinach (1 cup): Wilted down to about 2 tbsp -- spinach loses most of its volume when cooked. Squeeze out excess moisture after wilting or the custard will be watery.
• Cherry tomatoes (½ cup): Halved; pat dry before adding to reduce moisture.
• Onion (1 small): Finely diced.
• Garlic (1 clove): Minced.
• Cheese (½ cup, shredded): Gruyère is the classic choice -- nutty, melts cleanly, doesn't overpower the sardines. Cheddar is bolder; feta adds a Mediterranean note and doesn't melt (crumble it in instead).
• Salt and pepper: Taste the custard mixture before adding salt -- sardines are high in sodium; the filling may need very little.

Crust:

• Premade pie crust (1, 9-inch): Refrigerated or frozen; thaw per package instructions. Or make your own shortcrust pastry. For gluten-free: use a gluten-free pie crust, or skip the crust entirely and bake the filling in a greased pie dish (crustless quiche).

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Instructions

Step 1: Blind Bake the Crust

1. Preheat oven to 375°F (190°C).
2. Press the pie crust into a 9-inch tart or pie pan. Trim the edges and fold or crimp. Prick the bottom all over with a fork.
3. Line with parchment paper and fill with pie weights or dried beans -- this prevents the crust from puffing and sliding during blind baking. Without weights, the crust will buckle.
4. Bake 10 minutes with weights. Remove parchment and weights, then bake a further 5 minutes until the bottom is just set and lightly golden. Remove from oven and let cool slightly before filling.

Step 2: Sauté the Vegetables

1. Heat a skillet over medium heat with a drizzle of olive oil (or reserved sardine packing oil).
2. Add onion and cook 4-5 minutes until softened and translucent. Add garlic and cook 1 minute more without browning.
3. Add spinach and cook until fully wilted, about 2 minutes. Transfer to a plate and squeeze out as much moisture as possible with a clean towel or paper towels. Excess moisture is the most common cause of a watery quiche.

Step 3: Make the Custard

1. In a large mixing bowl, whisk together eggs and heavy cream until fully combined and slightly frothy.
2. Taste before adding salt -- sardines contribute significant sodium; add pepper and a small pinch of salt only if needed.
3. Stir in the sautéed vegetables, drained sardines (broken into chunks), cherry tomatoes (patted dry), and half the cheese.

Step 4: Assemble

1. Pour the custard mixture into the blind-baked crust. Spread evenly.
2. Scatter the remaining cheese over the top. Add a few extra cherry tomato halves on top for presentation if desired.

Step 5: Bake

1. Bake at 375°F for 30-35 minutes until the filling is set (a knife inserted in the center comes out clean) and the top is golden brown.
2. The center should have a very slight wobble when you shake the pan -- it will firm up as it cools. Overbaking produces a rubbery custard.
3. Cool on a wire rack for at least 10 minutes before slicing. Quiche slices cleanly when slightly cooled; cutting it hot causes the filling to run.

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Pro Tips

1. Squeeze the Spinach Dry

After wilting, spinach holds a surprising amount of water. Squeeze it firmly in a clean kitchen towel or paper towels until no more liquid comes out. This single step is the difference between a set custard and a watery one.

2. Use Pie Weights for the Blind Bake

Parchment paper + pie weights (or dried beans or rice) prevent the crust from puffing and sliding. Without them, the crust buckles and you lose the flat base needed for an even fill. Dried beans or rice work just as well as ceramic weights and can be reused indefinitely for this purpose.

3. Don't Overbake

Pull the quiche when the center has a slight wobble -- it will continue to set as it cools. A fully firm center in the oven means a rubbery, overcooked custard on the plate.

4. Taste Before Salting

Sardines are naturally high in sodium. Whisk the custard, taste it, and add salt only if genuinely needed. In most cases, pepper and the sardines' own seasoning are sufficient.

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Creative Variations

1. Mediterranean Sardine Quiche

Swap Gruyère for crumbled feta. Add kalamata olives (halved), sun-dried tomatoes, and a pinch of dried oregano to the custard. Finish with a drizzle of extra virgin olive oil after baking.

2. Spicy Sardine Quiche

Add ½ tsp red chili flakes and 1 tsp smoked paprika to the custard. Use pepper jack instead of Gruyère. Top with thinly sliced jalapeños before baking.

3. Crustless Sardine Quiche (Gluten-Free / Low-Carb)

Skip the crust entirely. Grease a 9-inch pie dish generously with butter or olive oil. Pour the custard directly in and bake at 375°F for 25-30 minutes. The result is lighter, lower in carbohydrates, and naturally gluten-free. Slices cleanly when fully cooled.

4. Leek and Sardine Quiche

Replace the onion with 1 large leek (white and light green parts only, thinly sliced and sautéed until soft). Leeks have a milder, sweeter flavor than onion and pair particularly well with sardines and Gruyère.

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Health Benefits

Nutritional values are approximate, based on USDA data for canned sardines with bones and large eggs. Individual products may vary.

• Omega-3 fatty acids (EPA+DHA): ~1.5-2g per serving of sardines -- one of the richest dietary sources. The American Heart Association recommends eating omega-3-rich fish at least twice per week for cardiovascular health.
• Complete protein: Sardines (~20-23g per 3.5 oz) + eggs (~6g each) = substantial protein per slice with all essential amino acids.
• Calcium: Canned sardines with bones provide ~350mg per serving (~27% DV).
• Vitamin B12: ~300-400% DV per serving of sardines -- essential for neurological function and red blood cell formation.
• Choline: Egg yolks are one of the richest dietary sources (~147mg per yolk) -- essential for brain health and liver function.
• Vitamin D: Both sardines and egg yolks are among the few significant dietary sources; supports bone health and immune function.

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Frequently Asked Questions (FAQs)

Can I make sardine quiche ahead of time?

Yes -- sardine quiche is one of the better make-ahead dishes in this lineup. Bake fully, cool completely, then refrigerate for up to 3 days. Reheat slices in a 325°F oven for 10-12 minutes, or in a microwave for 60-90 seconds. It's also excellent cold.

Can I freeze sardine quiche?

Yes. Cool completely, then wrap individual slices (or the whole quiche) tightly in plastic wrap followed by aluminum foil. Freeze for up to 2 months. To reheat from frozen: unwrap and bake at 325°F for 20-25 minutes until heated through. Do not microwave from frozen -- the custard texture suffers.

What's a good side dish for sardine quiche?

A crisp arugula salad with lemon vinaigrette, roasted asparagus, or a simple green salad. For brunch, serve alongside fresh fruit and sparkling water or a dry rosé.

What cheese works best?

Gruyère is the classic choice -- nutty, melts cleanly, and doesn't overpower the sardines. Cheddar is bolder and more assertive. Feta adds a Mediterranean note but doesn't melt -- crumble it in rather than shredding. All three work; the choice depends on the variation you're making.

Can I make a gluten-free sardine quiche?

Yes -- use a gluten-free pie crust, or skip the crust entirely (crustless quiche). Grease the dish well, pour in the custard, and bake at 375°F for 25-30 minutes. Naturally gluten-free and lower in carbohydrates.

Why is my quiche watery?

Almost always caused by excess moisture from the spinach or tomatoes. Squeeze wilted spinach firmly in a kitchen towel until no more liquid comes out. Pat cherry tomatoes dry before adding. These two steps eliminate the most common cause of a watery quiche.

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More Sardine Recipes

• Sardine Breakfast Recipe -- sardines and eggs on toast in 15 minutes.
• Sardine Crostini Recipe -- gourmet appetizer in under 20 minutes.
• Sardine Soup Recipe -- hearty, nutrient-rich, ready in 30 minutes.
• Sardine Burger Recipe -- juicy, golden patties with a panko crust.

For more recipes and cooking tips, visit the Global Seafoods YouTube Channel.

Explore the Portuguese Sardines Cluster

Browse our complete sardine recipe collection, read the Portuguese sardines guide, or shop whole frozen Portuguese sardines.

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