Miso Tuna Tartine

Posted on: November 10, 2022. Updated on: July 11, 2023.

by Carolina Gelen

This is one of my favorite recipes, the kind you go back to again because its just so good.  It’s versatile enough to be an appetizer or to have for a light dinner or lunch. It’s salty, crunchy, umami flavor combined with avocado make your stomach full but your mouth still wanting more. The recipe comes together in a short time  Just make sure you get the freshest, best quality fish you can. Also, if you’re not a fan of tuna, bass, or salmon work well too. Enjoy!

Miso Tuna Tartine

3.7 / 5. from 69

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3.7 / 5. from 69

Click to vote

Servings: 3 to 4
Prep: 15 minutes
Cook: 5 minutes

Ingredients

  • 1 medium sushi grade ahi tuna steak, cubed
  • 2 tablespoons miso paste, plus more as needed
  • A dollop of mayo
  • 1/4 teaspoon cayenne
  • Lemon zest
  • Lemon juice, to taste
  • 3 sourdough bread slices, cut into bite-sized squares
  • 2 to 3 ripe avocados
  • Extra-virgin olive oil
  • Salt, if needed
  • Optional toppings such as capers, pickled ginger, serrano peppers, cilantro or parsley and olive oil

Instructions

  1. Combine the miso, a drizzle of lemon juice, mayo, cayenne and a glug of olive oil. Whisk until smooth. Add the cubed tuna, taste and season more as needed.
  2. Fry each bread square on each side, in olive oil, for 1 1/2 to 2 minutes, until golden brown.
  3. Slice each avocado in half and remove the pit. Thinly slice the avocado, then flatten with your palm mentioning the same shape. Slice bread-sized squares of avocado using a knife. Place the avocado squares on the bite-size bread squares.
  4. Top each avocado with the miso tuna. Additionally, top with capers, a drizzle of olive oil, black pepper, cilantro or parsley, lemon zest, serrano peppers and pickled ginger, or any other toppings of choice.
  5. Serve right away

Carolina Gelen

I speak 5 languages, but my favorite way to communicate is through the universal language of food. I translate food to be more approachable and accessible for the everyday cook. I didn't grow up with a lot, so I’ve always loved thrifting and finding a good sale. That also shapes my approach to cooking: I try to make most of my recipes as affordable as possible, and that is what my SCRAPS newsletter is about. Every two weeks I will send an exclusive recipe to your inbox. Subscribe to get full access to the newsletter and website.

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8 thoughts on "Miso Tuna Tartine"

  1. Melissa says:

    I need to see you cut the bread and prepare and slice avocado. This recipe is gorgeous.

  2. Angel Sn. says:

    So good very delicious 😋

  3. Ariel says:

    I’m all in. Where’s the full recipe?? Can’t wait to make this!

    1. Carolina says:

      sorry had website issues, just emailed you the recipe.

  4. El says:

    Hi Carolina – This recipe sounds really tasty, and it looks beautiful . . . but I’m a little confused about how to deal with the avocado! In step 3, the recipe says: “Thinly slice the avocado, then flatten with your palm mentioning the same shape.” The instagram video shows overlapping avocado slices, cut to fit the squares of bread. I agree with Melissa’s comment – I’m just not quite sure how to get from thinly sliced to squares of avocado slices fitting onto the bread!
    Thanks!!
    El

    1. Carolina Gelen says:

      I have a little tutorial here that will hopefully make the process clearer

  5. Kiersten Adney says:

    What type of bread did you use?

    1. Carolina Gelen says:

      Homemade sourdough