If you know me at all, you know that olives are basically their own food group in my world, and Castelvetrano olives sit firmly at the top of that list. These buttery, mild little gems take on a completely different personality when you roast them and pair them with salty feta and a good kick of heat. Spicy Roasted Castelvetrano Olives with Feta is the kind of appetizer that disappears within minutes at any gathering, and I promise you will be making it on repeat. If you love cooking with olives, you also need to try my Shawarma Olives and my Marinated Green Harissa Olives for even more olive inspo.

Spicy Roasted Castelvetrano Olives with Feta at a Glance
- 🕒 Total Time: 25 minutes
- 👪 Servings: 8 people
- 🍝 Cuisine Type: Italian
- 🧂 Flavor Profile: Buttery Castelvetrano olives roasted with garlic, bright lemon, fragrant oregano, and red pepper flakes, then finished with creamy, salty feta.
- 📖 Dietary Info: Vegetarian and gluten-free as written; contains dairy. Serve with gluten-free bread if needed.
- 📦 Storage Notes: Store any leftovers in an airtight container in the refrigerator for up to 3 days and rewarm gently before serving.
- ⭐ Why You'll Love It: These Spicy Roasted Castelvetrano Olives with Feta are one of the easiest appetizers you can put on the table. The olives become warm and tender in the oven while the feta softens into creamy, salty pockets throughout. Serve them with grilled bread, toss them into pasta, or spoon them over chicken or steak.
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Why I Love This Recipe
If you know me at all, olives are basically their own food group in my world. I keep multiple varieties in the fridge at all times, I put them in everything, and Castelvetrano olives specifically have held the top spot on my list for years running. They are mild and buttery and a little sweet rather than aggressively briny, which makes them the perfect candidate for roasting because they absorb all the garlic and lemon and herb flavors around them without losing their own personality in the process.
The real magic of this recipe is what happens to the olive oil in the baking dish while everything roasts. The garlic softens and mellows, the shallot caramelizes slightly, the oregano releases into the oil, and the lemon juice reduces and concentrates into something so savory and bright and incredible that the bread situation becomes MANDATORY. The feta goes in at the very end so it warms through without melting completely.
One WGC reader made this three times in six weeks, including twice just for herself. I completely understand that impulse and I have done the same. Serve this as the starting point for a full cheese board spread alongside my Whipped Feta and my Greek Kopanisti Dip and you have an appetizer situation that no one will walk away from.
Jump to:
- Spicy Roasted Castelvetrano Olives with Feta at a Glance
- Why I Love This Recipe
- Ingredients
- Substitutions & Swaps
- How to Make Spicy Roasted Castelvetrano Olives with Feta
- 🫒🧀🌶️ Tips & Tricks for the Best Spicy Roasted Castelvetrano Olives with Feta
- Spicy Roasted Castelvetrano Olives with Feta FAQs
- Similar Recipes
- Spicy Roasted Castelvetrano Olives with Feta
Ingredients

Substitutions & Swaps
🫒 Castelvetrano Olives
- Cerignola Olives - A similarly large, mild olive with a firm, meaty texture that holds up well to roasting.
- Sicilian Green Olives - Another good option when Castelvetranos aren't available. Look for a mild variety rather than something intensely briny.
🧀 Feta
- Goat Cheese - A tangier, creamier alternative that will soften into the warm olive mixture.
- Ricotta Salata - A firmer option that adds salty flavor while holding its shape.
🌿 Oregano
- Fresh Thyme - A good substitute with a slightly woodier flavor that works well with the lemon, garlic, and olives.
- Dried Oregano - Use when fresh isn't available; start with a smaller amount since dried herbs are more concentrated.
🌶️ Red Pepper Flakes
- Calabrian Chile Paste - Adds deeper, fruitier heat. Stir a small amount into the olive oil before roasting.
- Aleppo Pepper - A milder option with gentle heat and a subtle sweetness.
🍞 Grilled Bread
- Toasted Sourdough or Crostini - An easy alternative for scooping up the olives, feta, and seasoned oil.
- Warm Pita or Focaccia - Both work beautifully for soaking up the seasoned olive oil.
How to Make Spicy Roasted Castelvetrano Olives with Feta

Step 1: Preheat the oven to 350°F.
In a medium baking dish, stir together the olives, olive oil, lemon juice, garlic, shallot, 3 sprigs of oregano, chili flakes, and salt. Transfer to the oven and roast for 20 minutes, until the olives are hot and the garlic is tender.

Step 2: Break the feta into the olive mixture. Remove the roasted, charred oregano stems. Sprinkle the leaves from the remaining 2 sprigs of oregano and the lemon zest over the top, and serve warm alongside the bread.

🫒🧀🌶️ Tips & Tricks for the Best Spicy Roasted Castelvetrano Olives with Feta
- Use Castelvetrano olives if you can find them. Their mild, buttery flavor and firm texture are especially good in this recipe and hold up beautifully when roasted.
- Lightly crush the olives before roasting. You only want to split them slightly so the lemon, garlic, herbs, and olive oil can work their way into the olives.
- Use a baking dish that holds everything fairly snugly. This keeps the olives, garlic, shallot, and oregano nestled together in the seasoned olive oil as they roast.
- Remove the roasted oregano stems before serving. They flavor the olive oil in the oven; finish the dish with fresh oregano leaves for a brighter herbal flavor.
- Add the feta after roasting. Breaking it into the warm olives lets it soften slightly while still keeping plenty of creamy pieces throughout the dish.
- Finish with fresh lemon zest. Adding it just before serving gives the warm olives and feta a fresh, bright finish.
- Serve with plenty of grilled bread. The seasoned olive oil is one of the best parts of the dish, so you'll want something on the table for scooping it up.
Spicy Roasted Castelvetrano Olives with Feta FAQs
What are Castelvetrano olives?
Castelvetrano olives are large green Sicilian olives known for their mild, buttery flavor and firm, meaty texture. I get them online in bulk because I love them. They're less intensely briny than many other olive varieties, which makes them especially good for roasting with garlic, lemon, herbs, and olive oil.
Can I use a different type of olive?
Yes. Cerignola olives or another good-quality Sicilian green olive are the closest substitutes. Look for a mild, firm olive that will hold its texture as it roasts rather than an intensely salty or briny variety.
What kind of feta works best for roasted olives?
Feta with a creamy texture works especially well here. Add it to the warm olives in larger crumbles so it softens slightly while still giving you distinct bites of creamy, salty feta throughout the dish.
Can I make roasted olives ahead of time?
Yes. Roast the olive mixture ahead of time and store it covered in the refrigerator. When you're ready to serve, gently rewarm the olives and then finish with the feta, fresh oregano, and lemon zest.
How spicy are these roasted Castelvetrano olives?
The red pepper flakes add warmth without overpowering the mild olives, feta, lemon, and oregano. If you prefer less heat, reduce the red pepper flakes; if you like things spicier, add more to taste.
What should I serve with roasted olives and feta?
Grilled bread is perfect for scooping up the warm olives, feta, and seasoned olive oil. You can also serve the olive mixture with crostini, toss it with pasta, or spoon it over chicken or steak.

Spicy Roasted Castelvetrano Olives with Feta
Ingredients
- 2 cups Castelvetrano olives pitted and lightly crushed
- 4 tablespoons extra virgin olive oil
- 1 lemon juiced and zested
- 6 cloves garlic
- 1 shallot thinly sliced
- 4-5 sprigs fresh oregano
- ½ teaspoon red pepper flakes
- kosher salt to taste
- 10 ounces fresh feta (1 to 2 blocks), broken into large crumbles
- Grilled bread for serving
Instructions
- Preheat the oven to 350°
- In a medium baking dish, combine the olives, olive oil, lemon juice, garlic, shallot, 3 sprigs of the oregano, red pepper flakes, and a pinch of salt. Stir to combine and make sure everything is nestled snugly in the oil.
- Roast for 20 minutes until the olives are warm and fragrant and the garlic is tender and lightly golden. Remove from the oven. Discard the charred oregano stems. Break the feta into the warm olive mixture in generous crumbles. Sprinkle the leaves from the remaining 2 fresh oregano sprigs over the top along with the reserved lemon zest.
- Serve immediately, warm, with plenty of grilled or toasted bread for scooping up the olives and the flavorful oil.
Notes
- Use Castelvetrano olives if you can find them. Their mild, buttery flavor and firm texture are especially good in this recipe and hold up beautifully when roasted.
- Lightly crush the olives before roasting. You only want to split them slightly so the lemon, garlic, herbs, and olive oil can work their way into the olives.
- Use a baking dish that holds everything fairly snugly. This keeps the olives, garlic, shallot, and oregano nestled together in the seasoned olive oil as they roast.
- Remove the roasted oregano stems before serving. They flavor the olive oil in the oven; finish the dish with fresh oregano leaves for a brighter herbal flavor.
- Add the feta after roasting. Breaking it into the warm olives lets it soften slightly while still keeping plenty of creamy pieces throughout the dish.
- Finish with fresh lemon zest. Adding it just before serving gives the warm olives and feta a fresh, bright finish.
- Serve with plenty of grilled bread. The seasoned olive oil is one of the best parts of the dish, so you'll want something on the table for scooping it up.
Nutrition Information (estimated)
Photo by Matt Armendariz / Food Styling by Adam Pearson / Recipe from What’s Gaby Cooking
** This post is brought to you by DeLallo. All content, ideas, and words are my own. Thanks for supporting the sponsors that allow me to create new and special content like this for What’s Gaby Cooking**




The best app ever!!! Has become a staple for our holiday!!
Can you serve this cold?
Totally
Wow! This is delicious. I didn’t have fresh herbs so I used dried & it was still amazing & everyone I served it to loved it! Paired well with a gin martini 😉
I am fully addicted to this app. I’ve made it 3 times in the last 6 weeks and two of those times have been just for me to have as a snack for the week. It works wonderfully as a pizza topping also. I can not stop making and eating it.
Made it last week and making it again this week. It’s so so so good. Tangy and salty and all the flavors I love.
I really want to make this for a get together we're having but my husband is fighting me on the price of this brand of olives. Is it worth the extra money to get Delallo?
Love the recipe! Can we use dried oregano instead? Any tips for that? Thanks!
you can!
What a great way to dress up olives!!
I can not wait to try these! I already did a marinated version with everything but the feta & I used fresh Rosemary instead or Oregano! But mine were cold & i served room temp. so good!! Thanks!!