Preheat the oven to 200 degrees Celsius. Put the scampi on a baking tray and cook according to packet instructions - usually around 20-25 minutes.
Meanwhile, make the tartar sauce. Finely chop your gherkins and capers and put in a bowl. Add the mayonnaise, dill, Worcestershire sauce and mustard and stir well to combine.
Three minutes before the scampi will be cooked, put the samphire in a nonstick frying pan. Cook over a medium heat, stirring often, for three minutes.
Put the taco shells in the oven for the last 30 seconds of the scampi cooking time.
To serve, evenly share the samphire between the taco shells. Top with the scampi, then drizzle over the tartar sauce. Enjoy!