Lightly butter both sides of the 8 slices of rye bread
Heat up your skillet to med high, and lightly toast each side of your rye bread. Keep a close eye so that it doesn't burn. Toasting time will be approximately 30 sec - 1 minute or so.
To keep the toasted bread from getting soggy, "tent" them by standing them up on their edges (see photo)
Once the slices have cooled, add 1/4 of the pastrami to the bottom slice of your sandwich. Repeat for a total of 4 sandwiches
Add 2 slices of swiss cheese on top of the pastrami, and then as much spicy brown mustard as you like. Repeat for a total of 4 sandwiches
Top with the top slice of your sandwich. Repeat for a total of 4 sandwiches.
Place your sandwiches in the 300 F oven for approximately 10 minutes or until the swiss cheese has started to melt
Remove and serve with dill pickles
Notes
The spicy brown mustard can sometimes be salty, so if you are watching your salt go easy on this! Enjoy this delicious hot pastrami sandwich with dill pickles for a taste of New York!