Harissa Roasted Cauliflower Steaks

Featured in: Southwest Spice

Thick slices of cauliflower are marinated in a lively blend of harissa, olive oil, lemon, and spices, then roasted until golden brown and fragrant. The result is tender steaks with a smoky, spicy flavor profile, accented by fresh parsley and crunchy toasted almonds. Serve with lemon wedges for zest and consider pairing with herbed couscous or a green salad for a complete Middle Eastern-inspired meal. Suitable for vegan and gluten-free diets, this dish brings bold flavors to the table with minimal prep.

Updated on Thu, 16 Oct 2025 11:43:44 GMT
Golden Harissa Roasted Cauliflower Steaks fresh from oven, garnished with parsley and almonds. Save
Golden Harissa Roasted Cauliflower Steaks fresh from oven, garnished with parsley and almonds. | dashofstates.com

Thick slices of cauliflower get cloaked in fiery harissa and roasted until their edges become crisp and slightly smoky. This recipe brings that Middle Eastern street food excitement right to your kitchen. Whether as a vegan centerpiece or a bold side, these cauliflower steaks are showstoppers with little fuss.

My family asks for these every time we grill outdoors or have friends coming over. Even my spice-hesitant dad asks for extra lemon on his.

Ingredients

  • Cauliflower large heads: Choose firm heavy ones with tight white florets for thick meaty steaks
  • Harissa paste: Delivers that signature smoky heat Look for vibrant color and aroma Avoid pastes with unnecessary sugar or preservatives
  • Olive oil: Adds rich flavor to help crisp the edges Use extra virgin for best taste
  • Lemon juice: Brings freshness and tang Squeeze from ripe lemons rather than bottled juice
  • Garlic cloves minced: Adds deep savory flavor Look for fresh firm cloves no green shoots
  • Ground cumin: Gives earthy backbone Make sure your cumin smells robust not musty
  • Smoked paprika: Brings a gentle smoky note Use Spanish smoked paprika if possible for intensity
  • Sea salt: Brightens all the flavors Use flaky sea salt or fine sea salt for even coverage
  • Ground black pepper: Adds gentle heat and complexity Always go for freshly ground for bigger punch
  • Fresh parsley: Chopped parsley at the end gives color and freshness Pick vibrant flat leaf for the best flavor
  • Toasted slivered almonds optional: Brings crunch and a nutty boost Toast lightly in a pan beforehand
  • Lemon wedges to serve: Essential for a final squeeze balancing spice and char

Instructions

Prep the Oven and Sheet:
Preheat your oven to a blazing 220 degrees C or 425 degrees F. Line the biggest baking sheet you own with parchment paper so you get caramelized bottoms but no sticking.
Cut the Cauliflower Steaks:
Remove any green leaves and carefully trim the bottom stem of each cauliflower. You need to keep the core intact to hold each steak together. Flip stem-side down and use the sturdiest chef's knife to slice across the whole head making thick steaks about two to three centimeters or about one inch wide. If a few pieces break free reserve them for another use or roast them alongside.
Mix the Marinade:
In a small bowl whisk harissa paste olive oil lemon juice minced garlic cumin smoked paprika salt and black pepper. Whisk vigorously until you can see the oil and harissa totally combined and the color deepens.
Marinate the Steaks:
Lay out the cauliflower steaks on your parchment lined sheet. Take a basting brush and slather the marinade on every crevice of both sides. Be generous This ensures flavor in each bite.
Roast to Perfection:
Slide the baking sheet into the hot oven. Roast for fifteen to seventeen minutes then gently flip each steak. Brush on more marinade if you have extra. Roast another fifteen to eighteen minutes until the steaks are deeply golden tender in the center and the edges caramelize to almost blackened.
Garnish and Serve:
Lift each steak onto a platter. Scatter chopped parsley and toasted almonds over the top. Squeeze fresh lemon right before serving and offer extra wedges at the table for anyone who wants more zing.
Spicy, smoky Harissa Roasted Cauliflower Steaks glistening with marinade, ready to be served. Save
Spicy, smoky Harissa Roasted Cauliflower Steaks glistening with marinade, ready to be served. | dashofstates.com

If I had to pick one MVP ingredient it is definitely that harissa paste The first time I roasted with it my whole house filled up with this incredible aroma almost smoky and vinegary My daughter calls it the magic red sauce

Storage Tips

Leftover cauliflower steaks keep best in a tightly sealed container in the fridge for up to three days Reheat them in a hot skillet or under the broiler so they crisp up again Avoid microwaving as they lose their edge

Ingredient Substitutions

If you cannot find harissa use another chili paste or try blending roasted red peppers with smoked paprika cayenne and garlic For nut free skip the almonds or replace with toasted pumpkin seeds You can swap smoked paprika for regular or hot paprika if you want extra kick

Serving Suggestions

Serve these steaks over a bed of herbed couscous or alongside a tangy yogurt dip Make them the main event in a grain bowl with chickpeas and greens For a mezze inspired meal pair with olives fresh tomato salad and flatbread

Cultural and Historical Context

Harissa is a chili and spice paste that hails from North Africa but is now a defining flavor across the Middle East Using it as a marinade gives you a little taste of the bustling markets and street food culture of places like Tunis and Marrakesh

Vegan Harissa Roasted Cauliflower Steaks dish with floret pieces, aroma filling the domestic kitchen. Save
Vegan Harissa Roasted Cauliflower Steaks dish with floret pieces, aroma filling the domestic kitchen. | dashofstates.com

This recipe turns cauliflower doubters into true converts. You will love every crispy, spicy, smoky bite.

Recipe FAQ

How do I slice cauliflower into steaks?

Trim the stem, keep the core intact, and cut thick slices from each head using a large knife. Reserve extra florets for another use.

Can I substitute harissa paste?

Yes, you can use your favorite chili paste for a unique twist, adjusting the level of spice to taste.

What garnishes work best?

Fresh parsley and toasted slivered almonds are suggested, with lemon wedges for added brightness.

Is this dish suitable for gluten-free diets?

It is naturally gluten-free; just confirm that your harissa paste does not contain gluten.

How can I achieve extra crispiness?

Broil the steaks for 2–3 additional minutes after roasting to enhance crisp edges and deeper flavor.

What pairs well as a side?

Herbed couscous or a fresh green salad complements the bold, smoky cauliflower steaks beautifully.

Harissa Roasted Cauliflower Steaks

Golden cauliflower steaks marinated in harissa offer smoky flavor, fresh herbs, and a satisfying vegan meal.

Prep duration
15 min
Cook duration
35 min
Complete duration
50 min
Created by Jordan Miller


Complexity Easy

Heritage Middle Eastern

Output 4 Portions

Nutritional considerations Plant-Based, No dairy, No gluten

Components

Cauliflower

01 2 large heads cauliflower

Marinade

01 3 tablespoons harissa paste
02 3 tablespoons olive oil
03 1 tablespoon lemon juice
04 2 garlic cloves, minced
05 1 teaspoon ground cumin
06 1 teaspoon smoked paprika
07 1/2 teaspoon sea salt
08 1/4 teaspoon ground black pepper

Garnish

01 2 tablespoons fresh parsley, chopped
02 2 tablespoons toasted slivered almonds (optional)
03 Lemon wedges, for serving

Method

Phase 01

Prepare Oven and Baking Sheet: Preheat oven to 425°F. Line a large baking sheet with parchment paper.

Phase 02

Trim and Cut Cauliflower: Remove outer leaves from cauliflower heads and trim stem while keeping core intact.

Phase 03

Slice Cauliflower Steaks: Place each cauliflower stem-side down and cut into 3/4 to 1-inch thick steaks using a large knife. Reserve any florets that break off.

Phase 04

Mix Marinade: In a small bowl, whisk together harissa paste, olive oil, lemon juice, garlic, ground cumin, smoked paprika, sea salt, and black pepper.

Phase 05

Marinate Cauliflower: Arrange cauliflower steaks on the prepared baking sheet and brush both sides generously with the harissa marinade.

Phase 06

Roast Cauliflower Steaks: Roast for 30 to 35 minutes, flipping halfway through, until steaks are golden, tender, and slightly charred at the edges.

Phase 07

Finish and Serve: Transfer steaks to plates. Sprinkle with chopped parsley and toasted slivered almonds. Serve with lemon wedges.

Necessary tools

  • Large knife
  • Baking sheet
  • Parchment paper
  • Small mixing bowl
  • Basting brush

Allergy details

Review each component for potential allergens and seek professional medical guidance if you're uncertain.
  • Contains tree nuts if almonds are used.
  • Free from gluten, dairy, soy, and egg.
  • Review harissa paste ingredients for potential allergens.

Nutrient breakdown (each portion)

These figures are approximate and shouldn't replace professional health advice.
  • Energy: 140
  • Fats: 8 g
  • Carbohydrates: 15 g
  • Proteins: 4 g