There’s something wildly comforting about the classic tuna melt: the warm, toasty bread, the creamy filling studded with crunchy bits, and the molten cheese that stretches with every bite. This Vegan Carrot Chickpea Tuna Melt reimagines that nostalgic sandwich with entirely plant-based ingredients while keeping the texture and flavor contrasts you crave. It’s a bright, tangy, and slightly briny sandwich that comes together quickly and shines whether you’re making lunch for one or a crowd.

Vegan Carrot Chickpea Tuna Melt is built on a simple premise: shredded carrots mimic flaked fish when combined with chickpeas, seaweed flakes bring a whisper of oceanic flavor, and a tang-forward dressing binds everything together. The result is addictive, honest, and packed with plant protein.

Why this version works

This rendition leans into texture and seasoning. Hand-shredded or food-processed carrots provide the fibrous, flaky element that stands in for tuna. Chickpeas add body and protein, while Dijon and ume plum vinegar bring the bright acid and savory depth that a good tuna salad needs. Dulse seaweed flakes are the secret—just enough to evoke a seaside note without overpowering the sandwich. Finish with vegan cheese melted between slices of crisp sourdough and you’ve got a sandwich that both comforts and excites.

Ingredients

2 medium carrots, peeled and shredded (by hand or food processor)
1 15.5-ounce can chickpeas, drained and rinsed
1/3 cup vegan mayo
2 tsp Dijon mustard
2 tsp ume plum vinegar, plus more to taste
1 tsp celery seeds
2 tsp dulse seaweed flakes
3 sprigs fresh dill, minced
Kosher salt, to taste
Vegan butter or olive oil, for toasting the bread
8 slices sourdough bread
4 to 8 slices of your favorite vegan cheese

Equipment

Box grater or food processor (for shredding carrots)
Mixing bowl
Fork or potato masher
Spatula
Skillet or griddle
Crisper or oven (optional for melting cheese)

Prep Notes

Use the larger holes on your box grater for the carrots or pulse a food processor briefly to achieve a shredded, slightly fibrous texture. Drain and rinse the chickpeas well so the dressing clings properly. Taste the filling before assembling the sandwiches and adjust ume plum vinegar and salt as needed; those two elements will brighten everything.

Flavor variations and swaps

If you like extra tang, add a pinch more Dijon or an extra 1/2 tsp ume plum vinegar.
Instead of dill, try a small handful of chopped parsley or chives for a different herb note.
For extra crunch, fold in a few finely diced celery stalks or toasted sunflower seeds.
Use your favorite vegan cheese; melty, mild varieties work best for an oozy, gooey texture.

Step-by-step Instructions

Follow these clear steps to make the filling and assemble the sandwiches. I’ve kept the ingredient amounts exact so you can rely on the results every time.

Shred the carrots: Peel 2 medium carrots and shred them using a box grater or the shredding disc of a food processor. Transfer the shredded carrots to a medium mixing bowl.
Prepare the chickpeas: Open and drain a 15.5-ounce can of chickpeas, then rinse them under cold water. Add the drained chickpeas to the bowl with the shredded carrots.
Mash the chickpeas: Use a fork or potato masher to gently mash the chickpeas in the bowl. Leave some chickpeas partially whole for texture; you want a mix of creamy and chunky, not a complete puree.
Add the creamy base: Stir in 1/3 cup vegan mayo to the mashed chickpeas and carrots. Mix until evenly combined.
Season and acidify: Add 2 tsp Dijon mustard and 2 tsp ume plum vinegar to the bowl. Sprinkle in 1 tsp celery seeds and 2 tsp dulse seaweed flakes. Stir well so the flavors marry.
Fresh herb and salt: Mince 3 sprigs of fresh dill and fold them into the mixture. Taste and season with Kosher salt to your preference. If the mixture needs more brightness, add a little more ume plum vinegar—start with 1/4 tsp and adjust.
Prepare the bread: Preheat a skillet or griddle over medium heat. Lightly spread vegan butter or brush olive oil on one side of each of the 8 slices of sourdough bread.
Assemble the sandwiches: Turn the bread slices buttered-side-down on a clean surface. Divide the carrot-chickpea mixture into four equal portions and place each portion on four slices of the bread. Top each portion with 1 to 2 slices of your favorite vegan cheese (use 4 to 8 slices total depending on how cheesy you like it). Close each sandwich with the remaining bread slices, buttered side up.
Toast and melt: Place the sandwiches in the preheated skillet. Cook 3–4 minutes per side, or until the bread is golden brown and the cheese has melted. Lower the heat slightly if the bread is browning too quickly before the cheese melts.
Finish and serve: Remove sandwiches from the skillet and let them rest for 1 minute. Slice each sandwich in half, serve warm, and enjoy the contrast of creamy filling and crisp, toasty bread.

Serving suggestions

These sandwiches pair beautifully with a simple side salad—peppery arugula with lemon vinaigrette is a classic choice—or a bowl of tomato soup for ultimate comfort. For a picnic, wrap them tightly in parchment paper to keep the melted cheese contained and save any extra filling for scooping with crackers or raw veggies.

Make-ahead tips

Prepare the carrot-chickpea filling up to 2 days in advance and store it in an airtight container in the refrigerator. Stir before assembling sandwiches, and add a splash of ume plum vinegar if the mixture tastes slightly muted after chilling.
If you want to assemble sandwiches without toasting right away, keep the buttered bread and filling separate and toast just before serving so the bread stays crisp.

Nutrition snapshot

This sandwich delivers plant-based protein from chickpeas, fiber from carrots and chickpeas, and a satisfying dose of healthy fats if you use olive oil to toast the bread. Using vegan cheese and mayo will add fat and richness, so feel free to choose lighter versions if you’re watching calories or saturated fat.

Common questions

Can I swap the dulse seaweed flakes? You can use nori flakes, kelp granules, or a small amount of finely crumbled nori sheet if you don’t have dulse. Each will lend a slightly different marine note but will keep the flavor profile authentic.

Is the texture truly like tuna? The combination of shredded carrots and partially mashed chickpeas recreates the stringy, flaky, and meaty texture many people miss when they give up canned fish. The dulse and ume plum vinegar help mimic that seafood-like umami tang.

Can I make this gluten-free? Yes—substitute your favorite gluten-free bread for the sourdough and check that your vegan mayo and cheese are certified gluten-free.

Final notes

This Vegan Carrot Chickpea Tuna Melt is about balance: rich and creamy where you expect it, bright and herbaceous where you need it, and toasty and melty in every bite. It’s an easy swap that celebrates familiar flavors in a kinder, plant-first format. Make a batch of the filling for a week’s worth of salads, sandwiches, or snacks, and treat yourself to the simple pleasure of a perfectly melty sandwich.

Happy cooking—and go ahead, add an extra dill sprig on top for good measure.

Vegan Carrot Chickpea Tuna Melt

A creamy, savory vegan tuna-style melt made from mashed chickpeas and shredded carrots with umami-rich dulse and ume plum vinegar.

Print Recipe Pin Recipe

Prep Time 15

Cook Time 20

Total Time 35

Servings: 4 servings

Ingredients Equipment Method Notes

Ingredients

2 medium carrots peeled and shredded
1 15.5-ounce can chickpeas drained and rinsed
1/3 cup vegan mayo
2 tsp Dijon mustard
2 tsp ume plum vinegar plus more to taste
1 tsp celery seeds
2 tsp dulse seaweed flakes
3 sprigs fresh dill minced
to taste Kosher salt
vegan butter or olive oil for toasting the bread
8 slices sourdough bread
4 to 8 slices your favorite vegan cheese

Equipment

Bowl
Fork
box grater or food processor with shredding blade
Food Processor (optional)
parchment-lined baking sheet
Spatula

Method

Preheat the oven to 375°F (190°C) and line a baking sheet with parchment paper.
Shred the peeled carrots using a box grater or the fine shredding disc of a food processor; set aside.
Place the drained chickpeas in a bowl and mash with a fork until mostly broken down but still a bit chunky.
Add the shredded carrots, vegan mayo, Dijon mustard, 2 tsp ume plum vinegar, celery seeds, dulse flakes, and minced dill to the mashed chickpeas; stir until combined.
Taste and season with kosher salt and more ume plum vinegar as needed until the mixture tastes balanced and slightly tangy.
Butter one side of each slice of sourdough (or brush with olive oil). Place four slices butter-side down on the prepared sheet and top each with a slice of vegan cheese and a scoop of the chickpea-carrot mixture.
Top each sandwich with the remaining bread slices, butter-side up, and bake on the sheet for about 10–12 minutes, until the bread is toasty and the cheese begins to melt.
Remove from the oven, let cool 1–2 minutes, then slice and serve warm.