Prawn soft shell tacos with chipotle mayo

Sunflower oil
1onion sliced
 24 prawns cooked and seasoned with salt and pepper
6 soft flour tortillas
1 small cos lettuce, chopped
Lime halves to serve
Coriander to serve

Chipotle Mayonnaise
1/2 cup mayo
1chipotle in abode sauce (1 just used a few hot peppers that were marinated in vinegar)

1. Heat a tbsp oil in a pan and add the onion and cook for 5-10 mins till browned. Season with salt and pepper and keep aside.
2. Add a little more oil to the pan and toss in the prawns when hot. Cook till the prawns are pink - about 30 secs. Season with salt and pepper.
3. Warm the tortillas in a pan on the oven for a few minutes. Fill the tortillas with onions, lettuce and prawns. 
4. Place chipotle and mayo in a small blender and purée to combine. Serve on the side to spoon on the prawns and lime wedges to squeeze over. Garnish with the fresh coriander.

Note. I also added finely chopped red and green bell peppers and some cucumbers that i deseeded and chopped.