Slice onion & spring onions, mix both together in a small serving dish.
Finely chop Rosemary, Mint & Cilantro, mix all together in a small serving dish.
Thinly slice avocados, season with salt & pepper.
Heat nuts in frying pan with a olive little oil. Stirring frequently to avoid sticking. Cook for 8 minutes, which will heat & give them a nice caramelized crispy edge.
While nuts are cooking separate and prepare your lettuce leafs.
I like to put all lettuce leaves in a bowl and surround with all the small serving dishes of taco fillings ... people are then free to grab a lettuce leaf and pile on all the fillings them selves.
My taco method is: lettuce leaf, scoop on the warm nuts, add onion mix, then avocado, then sprinkle with herb mix, and drizzle with some lemon.
I find green leaf lettuce a much better fit for this dish over iceberg as it doesn't break as easy and is less watery.
Give each person half a lemon so they can drizzle it on their finished taco for the final zest of taste... then make many more & enjoy, these are seriously so good!