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–+ servings
Tostadas de atún recipe.

Tostadas de Atún

author Maricruz Avalos Flores
12 tostadas
These Tostadas de Atún are a quick, fresh, and flavorful Mexican dish made with canned tuna, crunchy veggies, and a creamy chipotle sauce. All piled onto crispy tostada shells. Perfect for an easy lunch, light dinner, or crowd-pleasing appetizer.
prep 20 minutes
total 20 minutes
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Ingredients 

  • 12 tostada shells
  • 2 cans tuna (about 5 ounces each)
  • ⅓ cup Mexican crema (or Greek yogurt, or sour cream)
  • 2 Tbsp mayonnaise
  • 1 small red onion (chopped)
  • 1 medium carrot (grated)
  • 1 medium cucumber (diced)
  • 1 cup corn (canned)
  • 2 Tbsp cilantro (chopped)
  • 1-2 pickled jalapeño peppers (chopped)
  • 1 avocado (sliced, for serving)

For the chipotle sauce

  • 1 cup Mexican crema (or Greek yogurt, or sour cream)
  • 3 chipotle in adobo peppers (+ 1 Tablespoons of the adobo sauce)
  • 1 clove garlic
  • 1 Tbsp brown sugar
  • 1 tsp sesame seeds (+ more for serving)
  • lime juice (to taste)
  • salt and pepper (to taste)

Instructions
 

Prepare the Tuna Mixture

  • Drain the tuna and place it in a mixing bowl. Use a fork to shred it thoroughly.
  • Add the chopped cucumber, corn, red onion, grated carrot, cilantro, and pickled jalapeños.
  • Stir in the Mexican crema and mayonnaise. Season with salt and pepper to taste.
  • Mix everything until well combined. Cover the bowl and refrigerate until ready to use.

Make the Chipotle Sauce

  • In a food processor, combine the Mexican crema, chipotle peppers, adobo sauce, garlic, brown sugar, sesame seeds, and lime juice.
  • Add 2–3 tablespoons of water and blend until smooth and creamy.
  • Taste and adjust seasoning with salt, pepper, or more lime juice as needed.
  • Transfer the sauce to a squeeze bottle or serving bowl. Set aside.

Assemble the Tostadas

  • Spoon the tuna mixture onto each tostada shell (about 2 spoonfuls per shell).
  • Drizzle generously with the chipotle sauce.
  • Top with sliced avocado and a sprinkle of sesame seeds and serve immediately.

Notes

  • You can prep the tuna mixture and sauce up to a day ahead, just store them separately in the fridge.
  • Want extra crunch? Add shredded lettuce or thinly sliced radishes on top.
  • Adjust the spice level by adding more or fewer jalapeños or chipotles.
Nutrition Information
Serving: 1 tostada w/o sauce & toppings | Calories: 147kcal | Carbohydrates: 16g | Protein: 6g | Fat: 7g | Saturated Fat: 2g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 2g | Trans Fat: 0.03g | Cholesterol: 13mg | Sodium: 227mg | Potassium: 164mg | Fiber: 2g | Sugar: 2g | Vitamin A: 965IU | Vitamin C: 2mg | Calcium: 34mg | Iron: 1mg