Vegan Spanish Omelet With Caramelized Onion, Roasted Garlic And Rosemary Recipe

I love how this vegan Spanish omelet turns humble potatoes into a golden, satisfying dish that feels perfect for lunch or dinner. It is simple, flavourful, and so good you will want a second slice.

I’m obsessed with this vegan Spanish omelet because it hits that rare spot between sturdy and silky, with tender potatoes tucked into a savory, sliceable center. I love how rosemary brings this sharp, herby edge that keeps every bite interesting without getting fussy.

But the best part? It feels like proper lunch, not a sad plant-based compromise.

I’ll eat it straight from the pan, cold from the fridge, or wedged between bread when I’m too hungry to pretend I have patience. Simple.

Big flavor. No fuss.

Ever.

Ingredients

• Potatoes make it hearty, soft, and totally brunch-worthy without feeling fussy.
• Onion turns sweet and jammy, giving every bite that cozy diner vibe.
• Roasted garlic brings mellow, buttery flavor without punching you in the face.
• Rosemary makes it smell amazing, like you actually planned ahead.
• Olive oil helps everything get rich, silky, and a little golden.
• Chickpea flour holds it together and sneaks in solid plant-based protein.
• Water keeps the batter smooth, light, and not weirdly dense.
• Nutritional yeast adds a savory, cheesy note without any actual cheese.
• Kala namak gives that eggy flavor, which is honestly pretty wild.
• Sea salt keeps the potatoes from tasting flat or boring.
• Black pepper adds a tiny kick, nothing dramatic, just needed.
• Parsley makes it look fresh.

  Plus, it cuts through the richness.

• Basically, it’s comfort food that still feels pretty good for you.

Ingredient Quantities

• 1.5 pounds (about 700 g) potatoes, peeled and thinly sliced
• 1 large yellow or sweet onion, thinly sliced
• 1 whole head garlic, for roasting
• 2 tablespoons fresh rosemary, finely chopped (or 1 tablespoon dried)
• 3 to 4 tablespoons olive oil, plus extra for roasting the garlic
• 1 cup (120 g) chickpea flour
• 1 cup (240 ml) water
• 2 tablespoons nutritional yeast
• 1/2 teaspoon kala namak (black salt) or 1 teaspoon fine sea salt if unavailable
• 1 teaspoon fine sea salt, plus extra to taste
• 1/4 teaspoon freshly ground black pepper
• Optional: 2 tablespoons chopped fresh parsley for garnish

How to Make this

1. Preheat oven to 400 F (200 C). Slice potatoes thinly and place in a large bowl of cold water while you prepare other ingredients to remove excess starch.

2. Cut the top off the head of garlic, drizzle with a little olive oil, wrap in foil and roast in the oven for 30 to 35 minutes until soft and caramelized. Set aside to cool.

3. Heat 2 to 3 tablespoons olive oil in a large nonstick or cast iron skillet over medium heat. Drain and dry the potato slices, then add them in an even layer. Sprinkle with 1 teaspoon fine sea salt and cook, turning occasionally, until tender and lightly golden, about 12 to 15 minutes.

4. When potatoes are almost done, push them to one side of the pan and add the remaining tablespoon olive oil if needed. Add the thinly sliced onion and cook gently with the potatoes until the onion is soft and caramelized, about 8 to 10 minutes total for the onions. Stir in the chopped rosemary and freshly ground black pepper.

5. While potatoes and onions cook, make the chickpea batter. In a bowl whisk together 1 cup chickpea flour, 1 cup water, 2 tablespoons nutritional yeast, 1/2 teaspoon kala namak or 1 teaspoon fine sea salt if kala namak is not available, and 1/4 teaspoon black pepper until smooth. Squeeze the roasted garlic cloves from their skins and mash them into the batter.

6. Taste the batter and adjust seasoning with the extra fine sea salt to taste. Remember kala namak will add an egglike sulfur note if used.

7. Reduce heat to low and evenly distribute the potato, onion and rosemary mixture across the pan. Pour the chickpea batter over the potatoes and spread gently so it covers them. Cook on low for 6 to 8 minutes until the edges begin to set.

8. Transfer the skillet to the preheated oven and bake at 375 F (190 C) for 15 to 20 minutes until the top is set and slightly golden. Alternatively, if your skillet is not ovenproof, slide the tortilla onto a baking sheet before baking.

9. Remove from oven and let rest for 5 to 10 minutes, then loosen edges with a spatula and slide onto a serving plate. Garnish with chopped fresh parsley if using, slice and serve warm or at room temperature.

Equipment Needed

1. Oven (preheated to 400 F / 200 C)
2. Ovenproof nonstick or cast iron skillet (about 10 to 12 inches)
3. Baking sheet and aluminum foil
4. Large mixing bowl
5. Whisk
6. Chef knife
7. Cutting board
8. Colander or large bowl for soaking/draining potatoes
9. Heatproof spatula or turner
10. Measuring cups and spoons

FAQ

Vegan Spanish Omelet With Caramelized Onion, Roasted Garlic And Rosemary Recipe Substitutions and Variations

• Potatoes: substitute Yukon Gold for similar texture and flavor, sweet potatoes for a sweeter, denser result (reduce cooking time slightly), or fingerlings for a creamier bite.
• Chickpea flour: substitute 1 part aquafaba plus 3/4 part all purpose flour for a bind that is less beany, or use a gluten free blend (rice + tapioca) 1:1 for a neutral batter. Note adjust water to reach pancake-batter thickness.
• Rosemary: substitute fresh thyme or marjoram for a subtler, savory herb note, or use 1/2 amount dried thyme if dried rosemary is the only option.
• Kala namak (black salt): substitute 1 teaspoon fine sea salt plus 1/2 teaspoon nutritional yeast for an umami lift if kala namak is unavailable, or use 1 teaspoon soy sauce or tamari in the batter and reduce added water slightly to maintain consistency.

Pro Tips

1. Dry the potato slices thoroughly before they hit the pan. A towel squeeze or spin in a salad spinner removes surface moisture so they brown instead of steam, giving you crisp edges and better texture.

2. Roast the garlic a little longer than you think for deeper sweetness and easier squeezing. Let it cool enough to handle, then mash it into the batter while still slightly warm so the garlic aroma disperses evenly.

3. Use a heavy ovenproof skillet if you have one. Heat retention helps the bottom set evenly on the stovetop and finish with a nicely browned surface in the oven. If using a nonovenproof pan, line a baking sheet with parchment to keep things tidy when you transfer.

4. Taste and adjust seasoning before baking. Chickpea batter can seem bland raw but develops once cooked, so add a touch more salt or kala namak if you want a pronounced egglike note, and a little extra nutritional yeast for savory depth.

5. Let it rest after baking. Waiting 5 to 10 minutes firms the tortilla so it slices cleanly and the flavors settle, and serving it slightly warm brings out the rosemary and roasted garlic without masking their nuance.