Flaky golden pastry, sweet caramelised onions, and delicious salty cheese combine in this wonderful savoury onion and feta tart. An easy, tasty family dinner!
Know your onions
I never seem to have the right number of onions.
Onions are one of the vegetables that arrive weekly in our organic box – same amount every week. And yet somehow I either manage to use them all up in a couple of days, or else I barely use any onions at all and then the next week’s onions arrive and we have a huge onion surplus.
The second scenario happened recently and my onion storage tub was overflowing with onions. At this point I realised that using one onion at a time as the basis for a sauce or whatever just wasn’t going to work. I had to go all-in and make a completely onion-focused dish.
Fridge raider
A quick look in the fridge turned up some feta that was approaching its best before date and a packet of puff pastry that looked like a good base to tie everything else together. And thus, this delicious caramelised onion and feta tart was born!
Onion & feta tart – ingredients
As I said, this delicious tart was conceived to use up a surplus of onions and used a few other bits and bobs that I had hanging around in my cupboards and fridge. It contains no exotic ingredients at all, but is truly a savoury and satisfying dish!
To make one yourself, you will need:
- onions – naturally!
- olive oil – for frying/caramelising the onions
- seasonings – dried thyme, fennel seeds and black pepper
- feta cheese
- puff pastry – can’t make a tart without pastry! I use ready-rolled because it’s just so convenient.
- chopped parsley – optional, but it makes a lovely garnish with a fresh flavour
Simple and satisfying
I managed to use up 5 onions in this tart. Caramelising them took some time, but it’s quite a relaxing activity, and you can get on with other jobs while they look after themselves. Just come back every so often and give your caramelised onions a stir to make sure they cook evenly and don’t stick to the pan.
Once the onions are caramelised, assembling the tart is a simple and satisfying job. Then just pop the caramelised onion and feta tart into the oven for about 20 minutes until the filling is bubbling and golden and the pastry is risen and flaky.
A bit on the side?
This wonderful caramelised onion and feta tart needs very little in the way of accompaniment. We ate it with some buttered green vegetables, but a leafy salad would also be wonderful. The puff pastry is quite carbohydrate-dense so I didn’t serve any potatoes or other carbs with our tart. However some creamy potato salad would also be a nice addition, especially if you served smaller portions.
Depending on what you serve with it (see above) this tart serves 4-6 people.
Want deliciously easy, family-friendly recipes like this one delivered straight to your inbox? Click here to sign up. (Of course, I’ll never pass on your email address to anyone.)
Caramelised onion and feta tart
Ingredients
- 5 medium onions
- 3-4 tbsp olive oil
- ½-1 tsp dried thyme
- 1 tsp fennel seeds
- ¼ tsp ground black pepper (or to taste)
- 325 g ready-rolled puff pastry
- 200 g feta cheese, crumbled or cut into small dice
- 1 tbsp chopped parsley (optional)
Instructions
- Peel and thinly slice the onions.
- Heat the olive oil over a medium heat in a large skillet. Add the onions and cook, stirring occasionally, for around 25 minutes until the onions are very soft and starting to brown.
- Add the thyme, fennel seeds and pepper to the onions and stir well. Continue to cook for a further five minutes.
- Preheat the oven to 220°C (430°F).
- Line a baking tray with parchment. Unroll the puff pastry onto the parchment. Use the tip of a sharp knife to score a border around the pastry, about 1cm (approx. ½ inch) from the edge.
- Spread the onion mixture over the pastry, just up to the scored line - leave the border clear. Sprinkle the feta over the onion mixture.
- Bake the tart at 220°C (430°F) for 20 minutes until the pastry is risen and the filling is bubbling and golden brown. Remove from the oven and sprinkle over the chopped parsley.
- Serve the tart hot or warm.
Nutrition
More delicious onion recipes
If you like the look of this, but don’t have any puff pastry, you might like to try these caramelised onion and feta galettes or this cheese and onion quiche with fennel seeds instead!
More fabulous puff pastry tarts
Or if you have puff pastry but are short on onions and feta, why not try:
- Creamy courgette puff pastry tart – Family Friends Food
- Easy tomato puff pastry tart – Baking Queen 74
- Tomato and fennel tart – Supper in the Suburbs
- Puff pastry tomato tart – Sew White
Shashi
My mouth is watering – this combo of sweet caramelized onions and feta with that crust sounds and looks amazing!
Helen
Thanks Shashi! I hope you enjoy eating it, too 🙂
Angela
This recipe is so tasty. Such a great way to clean the frig and use up items. My kids love anything that resembles pizza. This was a hit with them!
Helen
Thanks Angela – great to hear that your kids enjoyed this too.
Deanne
I’m the same way- I either have tons of onions or no onions. I love the feta cheese with this tart, too!
Helen
LOL – glad it’s not just me! And thanks x
Biana
Looks so delicious! A perfect brunch dish, will be perfect with a nice, fresh salad.
Helen
Thanks Biana – yes, it just needs something fresh and crunchy and you’re all set!
Jen
I love savory tarts, the sweetness of the onions with the salty feta was a divine combo. Great to serve at a party,
Helen
Thanks Jen! I agree, they go really well together.
Jacqueline Meldrum
That looks so good. I could eat the whole thing without sharing! Thanks so much for sharing my tart. Sharing yours now!
Helen
Thanks Jacqueline. We ate the whole thing between four of us but I reckon two of us could have managed it!
All That I'm Eating
This looks SO good! I love that it almost looks like a pizza, feta and caramelised onions are always good together.
Helen
Thanks! I agree – they’re a great combination.
Jenn
You had me at caramelised onions – omigosh, love them! This dish looks amazing – I can’t wait to try it!
Helen
Thanks Jenn! It’s really delish – hope you enjoy it!
Jessica Formicola
Oh wow, does this look good! I am loving all of those ingredients, especially the onions!
Helen
Thanks Jessica. It’s a really delicious use of lots of onions.
Ashley
Oh yes!!!! This sounds soooo wonderful!!! When I see my overflowing onion bin, I caramelize a ton of onions and freeze in ice cube trays!
Helen
Thanks Ashley! That’s such a great idea. I’m sure you could defrost some and make this tart 🙂
Cathleen @ A Taste of Madness
I love how simple this recipe is. Bookmarked to make later, thank you!!
Helen
Thanks Cathleen! I hope you enjoy it as much as we did.
Lucy
Yum this looks really delicious and is perfect for a summer meal! I’m on the no onions end of the scale this week so I’m bookmarking this to make it when I reach the other end, which could well be next week.
Helen
LOL! I’m glad I’m not the only person who does onions in extremes.
Emma
Yum!!! Caramelised onion and feta is a great combo.
Helen
Thanks Emma! Agree! I love how it’s sweet, salty and savoury all at once.