Oven-roasted cauliflower never looked—or tasted—this good! With olive oil, lemon, tahini, and feta, plus a sprinkle of garlic, sumac, and nigella seeds, it’s a Mediterranean-inspired dish that’s simple, bold, and totally delicious.
Oven roasted cauliflower is one of my favorite Mediterranean dishes—it’s easy, elegant, and always a crowd-pleaser. Have you ever served a whole roasted cauliflower as a centerpiece? It turns this humble veggie into something rich, nutty, and full of flavor.
In this recipe, I’ll show you how to take it up a notch with a savory tahini and crumbled feta sauce, then finish it off with a sprinkle of sumac and nigella seeds. It’s perfect for a cozy weeknight meal or as a showstopper on your dinner table.
Oven-Roasted Cauliflower Recipe Ingredients:
- Small Head Cauliflower: The show’s star, cauliflower, offers a mild and nutty flavor with a tender, roasted texture.
- Olive Oil: Coating the cauliflower in olive oil ensures a crispy and golden exterior while adding a subtle fruity note.
- Tahini: Creamy and nutty, tahini brings richness to the sauce, enhancing the overall depth of flavor.
- Lemon Juice and Zest: The bright acidity of lemon juice and zest adds a zesty kick, balancing the richness of the tahini.
- Crumbled Feta Cheese: Feta cheese crumbles contribute a tangy and salty element, elevating the dish with a burst of savory goodness.
- Garlic Cloves (Minced): Minced garlic infuses the sauce with a pungent and aromatic punch, enhancing the overall savory profile.
- Sumac: Sumac adds a citrusy and tangy note, enhancing the flavor complexity and offering a vibrant sprinkle for visual appeal.
- Nigella Seeds: Nigella seeds provide a subtle peppery and earthy flavor, adding depth to the sauce and the roasted cauliflower.
- Salt and Pepper: Balancing the entire dish, salt and pepper ensure each element is perfectly seasoned.
What Are Nigella Seeds?
Nigella seeds (also called black cumin) are tiny, flavorful seeds used across Middle Eastern, Indian, and North African cooking. Their bold, slightly bitter flavor adds a hint of onion, black pepper, and oregano—perfect for enhancing your oven-roasted cauliflower.
Can’t find them? No worries! You can substitute with celery seeds, poppy seeds, fennel, or even cumin seeds. Look for nigella seeds at specialty spice shops, Middle Eastern or Indian markets, or stores like Whole Foods.
How to Prep a Whole Cauliflower for Roasting
Roasting a whole cauliflower is easier than it looks! Here’s how to get that golden, crispy finish:
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Trim & Clean: Remove outer leaves and trim the stem, but keep it intact to hold the cauliflower together.
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Optional: Reattach sturdy leaves underneath for extra support during roasting.
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Brush for Flavor: Coat with olive oil before roasting—and baste once or twice during cooking for maximum color and crispiness.
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Broil to Finish: Want extra browning? Turn on the broiler for the last few minutes to get that golden top.
How Long to Roast Whole Cauliflower
Cooking time depends on the size of your cauliflower. For a small to medium head:
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Roast at 375°F for about 35–45 minutes
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Check doneness by inserting a knife into the center—it should slide in easily.
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Skip boiling! Some recipes suggest parboiling first, but roasting from raw gives you a richer, nuttier flavor and keeps more of the nutrients intact.
Best Sauce for Oven-Roasted Cauliflower
A great sauce takes this dish to the next level! My favorite? A creamy tahini-feta sauce seasoned with sumac and nigella seeds for the ultimate Mediterranean touch. Want to experiment? Try: Garlic Parmesan Sauce – A rich, savory option. or Lemon-Herb Yogurt Sauce – Refreshing and tangy. Drizzle your favorite sauce over the cauliflower, and enjoy a flavor-packed showstopper!
Perfect Complements for Roasted Cauliflower
Your hearty oven-roasted whole cauliflower is a versatile dish that pairs wonderfully with various proteins, making it a versatile meal option. It can be served alongside steak, chicken, lamb, or pork for a fulfilling dish. Let the cauliflower take the spotlight as the main course for a vegetarian meal. It pairs wonderfully with sides like rice, couscous, or quinoa and goes perfectly with grilled vegetables or a delicious fattoush salad. With these options, the whole roasted cauliflower caters to various tastes and dietary preferences, always ensuring a delightful and satisfying dining experience.
Step-by-Step Instructions
Prep the Cauliflower for Roasting
Roast Until Golden and Tender
Make the Tahini-Feta Sauce
Serve and Enjoy

Ingredients:
1 small head cauliflower (clean and outer leaves removed. Keep four of the hard outer leaves to place underneath) | |
4 tablespoons olive oil | |
Salt and pepper |
For the Tahini sauce:
¼ cup tahini | |
¼ cup lemon juice plus zest of one lemon | |
¼ cup water | |
2 tablespoons crumbled feta cheese | |
2 cloves garlic (minced) | |
1 teaspoon sumac (and more to sprinkle) | |
1 teaspoon nigella seeds | |
Salt and pepper to taste |
Preparation
Preheat your oven to 375°F. Place the whole cauliflower, core side down, in a cast-iron skillet or oven-safe dish. Drizzle generously with olive oil, then rub it all over the surface to coat evenly. Season with salt and pepper. If you saved any sturdy outer leaves, tuck them underneath to help support the cauliflower and give it a rustic look.
Roast the cauliflower in the preheated oven for 35–45 minutes—closer to 35 for a small head, and up to 45 for a larger one. To check if it’s done, pierce the center with a knife; it should slide in effortlessly. Want that golden, caramelized top? Turn on the broiler for the last 2–3 minutes and keep a close eye so it doesn’t burn.
While the cauliflower is roasting, whisk together the tahini, lemon juice, and water in a bowl until smooth. Stir in the crumbled feta, minced garlic, sumac, and nigella seeds. Season with salt and pepper to taste. The sauce should be creamy, tangy, and full of flavor—perfect for drizzling over the roasted cauliflower.
Once the cauliflower is perfectly roasted, slice it into wedges. Drizzle generously with the tahini-feta sauce and finish with an extra sprinkle of sumac and nigella seeds for a burst of flavor. Serve warm as a stunning side or a meatless main dish—either way, it’s sure to impress!
Nutrition Information
The information shown is an estimate provided by an online nutrition calculator. It should should not be considered a substitute for a professional nutritionist's advice.
See our full nutrition disclosure here.
Did you enjoy the burst of flavors in this dish? I’d love to hear from you! Share your thoughts or any variations you tried in the comments below. Happy cooking!