Tuna Tostadas with Avocado

Instructions

1. Prepare the Tostadas

   3 min hands-on13 min waiting

   • Preheat the oven to 200°C (400°F).
   • Lightly brush both sides of the taco shells with olive oil and arrange them in a single layer on a baking tray.
   • Bake for 10-15 minutes, flipping halfway through, until golden and crispy. Set aside to cool.

2. Make the Tuna Filling

   5 min hands-on

   • In a large mixing bowl, combine mayonnaise and sriracha sauce until smooth.
   • Drain the canned tuna thoroughly and add to the bowl.
   • Trim and thinly slice the scallions. Dice the cucumber into small pieces and add both to the tuna mixture.
   • Sprinkle with a pinch of salt and stir until evenly coated.

3. Prepare the Avocado and Lime

   2 min hands-on

   • Slice the avocado thinly and squeeze a little lime juice over it to prevent browning.
   • Cut the remaining lime into wedges for serving.

4. Make the Tomato-Lime Vinaigrette

   3 min hands-on

   • Grate the tomatoes into a small bowl, discarding the skins.
   • Add the juice of half a lime, soy sauce, sesame oil, and spirulina powder. Whisk until well combined.
   • Taste and adjust seasoning with salt or additional lime juice if desired.

5. Assemble the Tostadas

   3 min hands-on

   • Spread a generous layer of the tuna mixture onto each crispy tostada.
   • Top with a few slices of avocado.
   • Drizzle the tomato-lime vinaigrette over the top.

6. Serve and Garnish

   1 min hands-on

   • Arrange the tostadas on a serving platter.
   • Serve immediately with lime wedges on the side.
   • Cooking tips:
   • To achieve maximum crunch, let the tostadas cool completely after baking before adding toppings.
   • For a creamier texture, mash a portion of the avocado and spread it directly onto the tostadas before layering on the tuna mixture.
   • Adjust the spiciness by increasing or decreasing the amount of sriracha in the tuna mixture.
   • Use ripe, juicy tomatoes for the vinaigrette to enhance the umami flavors.
   • If you want a stronger sesame flavor, lightly toast the sesame oil before adding it to the vinaigrette.