Satisfyingly crunchy, umami-filled bites with a zesty finish. The perfect canapes for your light summer barbecue. With a low-carb, roasted seaweed base and protein-packed tuna topping, finishing with a creamy, citrus twist that’s guaranteed to get the taste buds tingling.
Ideal for sharing, grazing boards or just a midday flavour hit before your meal, these scrumptious snacks are a light and airy taster to start any menu.
Ingredients
- 2 packs of MORiSH roasted seaweed thins – choose your fave!
- 1 tin of tuna (approx. 120g), drained
- 1 tbsp mayo (or Greek yoghurt for a lighter option)
- 1 tsp sesame oil
- 1 tsp soy sauce
- 1 tsp lime juice
- 1/2 small avocado, mashed
- 1 tsp finely chopped red chilli (optional)
- 1 spring onion, finely sliced
- 1 tsp sesame seeds
- Microgreens or finely chopped cucumber, to garnish
How to create MORiSH toasted seaweed and tuna smash
- In a small bowl, mix drained tuna with mayo, sesame oil, soy sauce, and lime juice until combined.
- Fold in mashed avocado, spring onion, and chilli.
- Lay your seaweed thins flat and gently top each with a spoonful of the tuna smash.
- Sprinkle with sesame seeds and finish with microgreens or cucumber for crunch.
- Serve immediately as a fresh, zesty bite-sized snack.
Top tip to keep your seaweed crispy
Try to prep your tuna mix ahead of time but leave your assembly until last. Open the seaweed pack as late as possible, which ensures your seaweed keeps the satisfying crunch right up until the moment you serve, adding layered textures to your dish.
If you’re after a little extra flair, then a dab of siracha or a tiny slice of pickled ginger will create an irresistible sushi-inspired upgrade.
Image: Range of MORiSH's roasted seaweed thins
Don’t keep those seaweed masterpieces to yourself—snap, post, and tag @morishsnacks. Let the world see your tuna mash 😋!
You might also enjoy our blog post on 5 simple meals to top with roasted seaweed sheets.

