Tuna Tostadas
By Ocado
Published on 27 January 2026
Kick off your menu with these vibrant Mexican-inspired tostadas. We’ve paired seared yellowfin tuna with a zesty sesame-soy dressing and creamy avocado for a fresh flavour combination. They look impressive but come together quickly, making them the perfect stress-free starter for a dinner for two.Time and servings
30 minsTotal time
2Servings
15 minsPrep time
15 minsCooking time
Ingredients
- 2 tbsp olive oil
- 6 corn tacos, we used Cantina Gluten Free Yellow Corn Tacos
- 2 yellowfin tuna steaks, we used Leap
- 2 tbsp sesame soy sauce, we used Lee Kum Kee Oriental Sesame Soy
- 1 red chilli, finely sliced
- 1 tsp grated ginger
- 2 limes, juiced
- 2 avocados
- Coriander leaves, to serve
Method
Step 1
Preheat the oven to 180°C/160°C fan/gas 4. Brush the tacos on both sides with half the oil, then put on a wire rack set over a tray. Cook for 10 mins, flipping over halfway, until crisp.Step 2
Meanwhile, brush the tuna steaks with the remaining oil. Heat a medium pan over a high heat. Add the tuna steaks and sear for 30–45 secs per side (depending on thickness) to cook to rare. Remove from the heat and transfer to a chopping board.Step 3
In a medium bowl, whisk the sesame soy, chilli and ginger with the juice of ½ a lime.Step 4
In a small food processor, blitz the avocados with the juice of the remaining 1½ limes until smooth.Step 5
To serve, thinly slice the tuna, then transfer to the bowl with the sesame soy dressing and toss to coat.Step 6
Spread the avocado on the tostadas, top with the dressed tuna and scatter over the coriander leaves.