Caramelized Onion Feta Pastry Bites (Copycat)

30 Servings
Prep Time 30 minutes
Cook Time 20 minutes
Total Time 50 minutes

Caramelized Onion Feta Pastry Bites from Trader Joe’s are one of their most popular frozen appetizers (and most expensive) and they’re easy to make at home!

Caramelized Onion Feta Pastry Bites from Trader Joe's are one of their most popular frozen appetizers (and most expensive) and they're easy to make at home! Caramelized Onion Feta Pastry Bites (Copycat)

Trader Joe’s Pastry Bites with Feta and Caramelized Onion are an addiction that is pretty darn hard to stop once you’ve tried them. Plus, they’re expensive which isn’t awesome when you need multiple boxes for a craving.

These Caramelized Onion Feta Pastry Bites are so inexpensive and easy to make that you’ll find yourself making them for all your dinner parties.

Best part ever? You can prep these ahead of time and freeze them. When you’re ready to serve them you just pop them into the mini muffin tins and bake.

The perfect caramelized onion and feta pastry bites. The perfect Trader Joes Copycat.

Alternate flavor ideas:

  • chopped ham and Swiss cheese instead of feta and onions.
  • chopped salami and Provolone
  • bacon and blue cheese
  • cranberry sauce and brie

Want to freeze these Pastry Bites with Feta and Caramelized Onion?

Follow the directions up to right before you would put it into the oven. Freeze the bites for 2-3 hours then store in a ziploc bag. When ready to cook, put them into the muffin tins and bake for 20-22 minutes. Do not bake them without the mini muffin tins, the puff pastry will flatten into pancakes making a mess.

Want to make this into a slab? Add half the sour cream and keep the puff pastry in three large triangles. Score a rectangle shape a half inch from the border and fill with the feta mixture and top with onions. Bake for 20-22 minutes. Directions can be found here.

Here’s the store version/original before baking: Trader Joes

Here’s the homemade version that looks more like their picture on the box before they are baked:

trader joes Pastry bites before baking

Looking for more appetizer recipes?

Tools used in the making of these Caramelized Onion Feta Pastry Bites:
Mini Muffin Tin: Make sure you’re using the right size, these are perfect for a one bite appetizer.
Cast Iron Skillet: The perfect pan for caramelizing onions, a nice heavy bottomed even cooking pan.

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Caramelized Onion Feta Pastry Bites (Trader Joe's Copycat)

Caramelized Onion Feta Pastry Bites from Trader Joe's are one of their most popular frozen appetizers (and most expensive) and they're easy to make at home!
Yield 30 Servings
Prep Time 30 minutes
Cook Time 20 minutes
Total Time 50 minutes
Course Appetizer
Cuisine American
Author Sabrina Snyder


  • 1/2 box Puff Pastry (I used Pepperidge Farm)
  • 2 yellow onions
  • 2 tablespoons unsalted butter
  • 2 tablespoons brown sugar
  • 1/4 teaspoon Kosher salt
  • 3 ounces feta cheese
  • 4 tablespoons unsalted butter melted
  • 1/4 cup sour cream
  • 1 large egg


  • Preheat the oven to 400 degrees.
  • Slice the yellow onions thinly and put them in a cast iron skillet with the butter on medium-low heat.
  • Add salt and brown sugar and cook on low for 15-20 minutes until browned, stirring every few minutes.
  • In a bowl whisk together the feta, butter, sour cream and eggs.
  • Unfold the puff pastry rectangles and cut each three piece sheet into 30 squares.
  • Spray the mini muffin tin with cooking spray and put the puff pastry squares into each well.
  • Spoon in a scant tablespoon of cheese mixture into each well, then cover with a few pieces of onion.
  • Bake for 18-20 minutes.


If freezing: Add the ingredients to the muffin tins and before baking put the trays into the freezer. From frozen bake 20-22 minutes.


Serving: 1g | Calories: 84kcal | Carbohydrates: 5g | Protein: 1g | Fat: 6g | Saturated Fat: 2g | Cholesterol: 14mg | Sodium: 75mg | Potassium: 22mg | Sugar: 1g | Vitamin A: 100IU | Vitamin C: 0.6mg | Calcium: 21mg | Iron: 0.3mg
Keyword: Caramelized Onion Feta Pastry Bites (copycat)
Caramelized Onion Feta Pastry Bites from Trader Joe's are one of their most popular frozen appetizers (and most expensive) and they're easy to make at home!
Trader Joes Pastry Bites with feta and onion are the perfect holiday appetizer and SO EASY to make!

About the Author: Sabrina Snyder

Sabrina is a professionally trained Private Chef of over 10 years with ServSafe Manager certification in food safety. She creates all the recipes here on Dinner, then Dessert, fueled in no small part by her love for bacon.

Sabrina Snyder is a professionally trained personal and private chef of over 10 years who is the creator and developer of all the recipes on Dinner, then Dessert.

She is also the author of the cookbook Dinner, then Dessert – Satisfying Meals Using Only 3, 5 or 7 Ingredients, published by Harper Collins.

She started Dinner, then Dessert as a business in her office as a lunch service for her coworkers who admired her lunches before going to culinary school and becoming a full time personal chef and private chef.

As a personal chef Sabrina would cook for families one day a week and cook their entire week of dinners. All grocery shopping, cooking and cleaning was done along with instructions on reheating. As a private chef she cooked for private parties and cooked in family homes in the evenings for families on a nightly basis after working as a personal chef during the day.

Sabrina has been certified as a ServSafe Manager since 2007 and was a longstanding member of the USPCA Personal Chef Association including being on the board of the Washington DC Chapter of Chefs in the US Personal Chef Association when they won Chapter of the year.

As a member of the community of food website creators Sabrina Snyder has spoken at many conferences regarding her experiences as a food writer including the Indulge Food Conference, Everything Food Conference, Haven Food Conference and IACP Annual Food Professionals Conference.

Sabrina lives with her family in sunny California.

Dinner, then Dessert, Inc. owns the copyright on all images and text and does not allow for its original recipes and pictures to be reproduced anywhere other than at this site unless authorization is given. If you enjoyed the recipe and would like to publish it on your own site, please re-write it in your own words, and link back to my site and recipe page. Read my disclosure and copyright policy. This post may contain affiliate links.


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  1. I have used this recipe for years whenever I host an event – they are gone in minutes! Finally leaving a review to sing your praises because my friends associate these as my signature appetizer 🙂

  2. Very confused about two separate measurements of butter then the directions say “add butter” but never indicating which one to use.

    1. The ingredients go in order of use, for the first two tablespoons add it to the onions. The second amount goes in with the mixture.

  3. Perfect. Absolutely perfect. I’ve made these three times and every time they are a ~hit~!!!

    I freeze mine (after they are assembled) and pop them in the oven right before the parteee <3 The easiest recipe to make your friends think that you are an expert chef.

    Also, I used this puff pastry recipe the most recent time I made them and they were the BEST they'd ever been!

  4. I have made this recipe exactly as described many times now and they never disappoint. For potlucks, game day eats or garden parties, these cheesy, creamy, savory sweet bites are always a hit! Thank you so much for the recipe. Please keep ’em coming!

  5. Is there another cheese I could substitute for feta cheese? I am having problems right now getting feta. I am in remote Alaska. When I did use feta the recipe was great. Thank you for the treats.

  6. I followed the recipe exactly as written except my mini muffin tins only made 24 instead of 30 tartlets. I froze them unbaked in the tins. I baked them right before I took them to a party and this worked out perfectly. They were a huge hit and were gobbled down within minutes!

  7. What does 3 ounces of feta look like? Is there another measure you can clarify? Maybe tablespoons? Just made the blueberry goat cheese ones. Have made several of your other recipes and always turn out great! Thanks!

  8. The Trader Joe’s ingredients say they use cream cheese. Is there a reason why you use sour cream? here is their posted ingredient list: INGREDIENTS
    Puff pastry (enriched wheat flour (Wheat Flour, malted barley flour, ascorbic acid [vitamin c as dough conditioner], Niacin, Folic Acid, reduced Iron, Thiamin Mononitrate, Riboflavin), water, butter, salt), cream cheese (pasteurized cultured cream, milk, natural acids, salt, xanthan gum, carob bean gum, guar gum), onion, feta cheese (pasteurized milk, salt, cheese culture, enzymes), egg, sugar, unsalted butter [milk].

    1. The reason I use sour cream instead is because cream cheese has very pronounced flavor and your bites will taste more like cream cheese than feta. Feta is so mild it can easily get lost and overpowered. You never know what type of cream cheese TJs is using (not like our store bought kind) and it’s not affecting the flavor profile as it would if we used it. Feel free to test it using cream cheese but don’t be surprised if it doesn’t taste like feta anymore. I stand by using sour cream for this recipe. I hope you enjoy them either way.

  9. Recipe sounds wonderful!

    Just to clarify, do I use 3 sheets of puff pastry total (1 on top of the other), then cut the block of puff pastry sheets into 30 squares?

    1. Sorry for the confusion. The puff pastry sheet is originally folded into thirds. You’ll want to completely unfold it and cut it into 30 squares (total). I hope this clears it up for you.

  10. These are my favorites at Trader Joe’s! Happy to have a homemade hack.

    I subbed 3% fat plain yogurt for the sour cream, and subbed sharp cheeses I had on hand instead of the feta. Tasted delicious! Only next time I will halve the butter, as the dough was soaked even after doubling the baking time. Regardless, super excited to make these again with this tweak.

    1. The sogginess you experienced was most likely from the substitution of 3% fat yogurt. Halving the butter may actually worsen the sogginess of the product. These types of substitutions rarely work well in recipes. Perhaps sticking to the recipe, and eating it in moderation would be a better choice.