Festive Mushroom & Egg Breakfast Tarts

I cook most weekends like I’m tuning a small instrument—listening for the moment when the pastry sings. This time the tune was savory: a batch of miniature mushroom-and-egg tarts that came together from things I had on hand and a faint memory of a festive recipe I once bookmarked. For the version that inspired me I checked the original post early on: Festive Mushroom & Egg Breakfast Tarts—Christmas Morning.

Ingredients I leaned on

• 3 sheets of ready-rolled puff pastry, partially thawed so they would be pliable but still cold.
• About 150 g finely chopped mushrooms to sauté until they were soft and fragrant.
• 1 tablespoon olive oil, which I used both for sautéeing and as a light spray on the tart cups.
• Leaves from 8 sprigs of lemon thyme (I stripped them from the stems and stirred most through the mushroom mix).
• 1/3 cup fresh ricotta, folded through the mushrooms to add creaminess.
• 12 fresh egg yolks, aiming for one yolk per tart (I reserved the whites because I wanted the tarts glossy and custardy on top).
• 250 g small vine-ripened tomatoes, halved and roasted alongside the tarts for a sweet, concentrated counterpoint.

A quick, messy narrative of how it actually happened
I started with the mushrooms in a hot pan and a tablespoon of olive oil—no fuss, just patience. Once the mushrooms had given up their liquid and browned lightly, I turned down the heat, stirred in the lemon thyme leaves, let the fragrant oils bloom for a minute, then lifted the pan off the heat and stirred in the ricotta until the mixture became a spreadable paste. It wasn’t a formal filling so much as a creamy, herbed ragout.

While that cooled, I preheated the oven to 200°C (about 400°F). Three sheets of puff pastry yielded exactly enough rounds when I used a 9-cm cutter: twelve even discs. I pressed each disc into a lightly oiled muffin tray cup—spritzing with the same olive oil to help them brown. A spoonful of the mushroom-ricotta went into the base of each shell, then, carefully, I made a small well and dropped in a single yolk for each tart. I like the yolks to be distinct and glossy, not fully set into a solid custard.

The tomatoes went onto a separate tray, cut-side up, with a drizzle of oil and a little salt. They roasted for 15–20 minutes, caramelizing at the edges while the tarts puffed and the pastry turned golden; the yolks firmed to that tender jammy texture I chase.

Timing and texture notes

• Oven temp: 200°C/400°F works reliably with puff pastry when you want quick puff and glossy yolks.
• Bake time: about 12–18 minutes, but watch closely after 12. Pastry should be golden and crisp; yolks should wobble but not be runny if you plan to serve immediately.
• If you prefer fully set yolks, add a couple of minutes. If you want them softer, check at 10–11 minutes.

A short how-to list (if you like checkpoints)

1. Sauté mushrooms in 1 tbsp olive oil until browned; fold in lemon thyme leaves and 1/3 cup ricotta; cool.
2. Cut 12 rounds from 3 sheets of puff pastry; press into muffin tin cups and spray lightly with oil.
3. Fill each cup with mushroom-ricotta, make a well, place one egg yolk into each.
4. Roast 250 g halved vine tomatoes on a separate tray with oil and salt.
5. Bake tarts at 200°C until pastry is golden and yolks reach desired doneness.

A variation I flirted with mid-batch
Halfway through I remembered a slightly different mushroom tart approach and swapped a few thyme leaves for chopped parsley in some tarts to see how the flavor shifted; the herb swap brightened the mushrooms and made one tray taste noticeably fresher. If you want a crustless interpretation, there’s an adaptation I sometimes consult for inspiration: a simpler Festive Mushroom & Egg twist.

Serving, storing, and the little compromises
I like to serve these warm with the roasted vine tomatoes spooned over or alongside. They don’t store perfectly because the pastry loses crispness; refrigerate leftovers and reheat in a hot oven (not the microwave) to bring the edges back. If you plan to make these for guests, you can assemble up to the point of adding yolks and keep them chilled; pop them into a hot oven when your guests arrive.

Another tip: if you crave a breakfast that’s more sandwich-like—egg-in-a-hole or bagel-centered—you’ll find related techniques surprisingly helpful; I use them for timing and yolk-handling tricks I picked up from a few other morning experiments like my favorite egg-in-a-hole bagel method.

What I would change next time
I might add a scatter of grated hard cheese to the mushroom mix before baking to encourage browning on top, and I’d experiment with tiny slices of sun-dried tomato inside the filling for an extra umami kick.

Conclusion

If you enjoy a savory tart with crisp pastry and gently jammy yolks, I often look to similar recipes for small technique ideas—like the way a mushroom galette balances caramelized onion and mushroom flavor—and this mushroom and caramelised onion galette is one I return to for inspiration. For a lighter take without a pastry shell, the Crustless Breakfast Tarts with Mushrooms at Kalyn’s Kitchen shows how to keep the mushroom-and-egg idea but skip the puff entirely.

Personal note: the only real limitation I found was that the puff pastry’s crispness fades faster than I like, so if you’re hosting, time the final bake as close to serving as possible.

Miniature Mushroom-and-Egg Tarts

Savory miniature tarts filled with sautéed mushrooms, ricotta, and a sunny-side-up yolk, all encased in flaky puff pastry.

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Prep Time 20 minutes mins

Cook Time 20 minutes mins

Total Time 40 minutes mins

Servings: 12 tarts

Course: Appetizer, Snack

Cuisine: American, European

Calories: 150

Ingredients Method Notes

Ingredients

  

Pastry and Filling Ingredients

• 3 sheets ready-rolled puff pastry Partially thawed
• 150 g finely chopped mushrooms Sauté until soft
• 1 tablespoon olive oil For sautéing and spritzing
• 8 sprigs lemon thyme Leaves stripped from stems
• 1/3 cup fresh ricotta Folded through mushrooms
• 12 pieces fresh egg yolks One yolk per tart
• 250 g small vine-ripened tomatoes Halved and roasted

Method

 

Preparation

1. Sauté the finely chopped mushrooms in olive oil until browned, then stir in the lemon thyme leaves and allow to bloom.
2. Fold the ricotta into the mushroom mixture until well combined and cool.
3. Preheat the oven to 200°C (400°F).
4. Cut 12 rounds from the puff pastry sheets using a 9-cm cutter and press them into a lightly greased muffin tin.

Assembly

1. Fill each pastry cup with the mushroom-ricotta mixture and make a small well for the egg yolk.
2. Carefully place one egg yolk into each pastry cup.

Roasting

1. Place halved tomatoes on a separate tray, drizzle with olive oil and sprinkle with salt.
2. Roast the tomatoes for 15-20 minutes.
3. Bake the tarts in the oven for about 12-18 minutes until golden.

Notes

Serve warm with roasted tomatoes. Refrigerate leftovers and reheat in an oven for best results. Consider adding grated cheese to the mushroom mix for added flavor next time.