Tostadas de Atún con Crema de Jalapeño (Seared Tuna Tostadas)
Crisp tostadas topped with seared tuna, creamy jalapeño cilantro sauce, avocado and crunchy radish, a bright Mexican starter or light supper.
Made with Tostadas and totopos (tortilla chips) and Creamy jalapeno cilantro sauce. Make a batch of the base first, then this takes minutes. Skip to the method
- Time25 min
- LevelEasy
- Costabout £2.58 a head
Cost is worked out from Aldi and Tesco shelf prices in October 2026. Your shop and brands will differ.
Ingredients
Tick what you need to buy. It goes on your shopping list.
Method
- 1
Pat the tuna dry and season with salt. Heat the oil in a frying pan over a high heat until smoking. Sear the steaks for 1 minute per side so they stay rare in the middle, then rest for 2 minutes and slice thinly.
2 min - 2
Toss the avocado slices with the lime juice.
- 3
Take your ready made tostadas (see the base recipe) and spread each with about a tablespoon of your creamy jalapeno cilantro sauce (see the base recipe).
- 4
Top with avocado, then slices of tuna and radish.
- 5
Scatter with sesame seeds and coriander and serve right away so the tostadas stay crisp.
Tips
- Buy tuna labelled suitable to eat rare or very fresh; sear hard and fast so the centre stays soft.
- Assemble at the table or right before serving, or the tostadas go soggy.
- For fully cooked tuna, sear 3 minutes per side instead.
Storing and freezing
Best eaten immediately. Keep cooked tuna 1 day in the fridge; do not store assembled tostadas.
Questions
Can I use cooked tuna?
Yes, cook the steaks through (3 minutes per side) or use flaked tinned tuna in water, drained. It is a different but still tasty dish.
Is this gluten free?
Yes, provided the tostadas are made from corn only and your sesame seeds are plain. Always check packaging.
Should pregnant women eat rare tuna?
Rare tuna is not recommended in pregnancy; cook it through and note UK guidance on tuna intake.
More made with tostadas and totopos (tortilla chips)
BBQ Chicken Nachos with Pico de Gallo
GFEFNFTostadas de Frijol y Carne Molida (Crisp Bean and Beef Tostadas)
GFEFNFHuevos Estrellados con Salsa Macha (Fried Eggs with Chilli Crunch)
GFDFNFTostadas de Pollo con Mole (Chicken and Mole Tostadas)
GFDFEFSee every dish made with tostadas and totopos (tortilla chips)
Double check before you cook. Recipes can contain mistakes. Any diet labels come from the ingredients as written in this recipe and are a guide, not a guarantee. Always check every ingredient and the packet label for allergens and cross contamination, and ask your doctor or dietitian what is right for you, especially with coeliac disease, diabetes or a serious allergy. This is not medical advice.