Measure out and prepare all the ingredients.

Cut each pickle in half, lengthwise. Scoop out the seeds of the pickle and then some so it makes a little boat where you can easily put the mayonnaise and mustard without it squeezing out the sides of the sandwich.

In a bowl, mix the mayonnaise and mustard together. Put this on one side of the pickle, where you scooped the seeds out from.

Place the turkey, salami, tomato slices, lettuce leaves, cheese, and onion on top of the sauce. Season with salt and pepper to taste.

Place the other half of the pickle on top. Secure it down with a toothpick, and enjoy!