1Brown mushrooms & onions ( salt & pepper ) in bacon fat or butter, until tender and browning. Set aside.
In a small bowl, mix up the mayo, mustard and dill. Refrigerate until ready to use.
2Make your patties - salt & pepper each side. I then got my cast iron skillet pretty hot and seared the burgers in about 1 tablespoon bacon grease. ( GOOD FLAVOR ). After about 5 minutes, flip to other side and cook another 5 minutes.
3I then placed the skillet under my broiler 2nd notch down from flame. Continue broiling until burger is cooked to your desired preference. Add a slice of cheese to each burger and broil until melted.
4In the mean time, butter the top side of bread or bun and place 2 slices of swiss cheese on the bottom half of bread. Place on a broiler pan and broil until turning golden and cheese is melted.
5In the same pan as you cooked the mushrooms and onions brown the ham and salami.
6Burgers should be done by now.
To build the burger, I spread about 1 tablespoon of sauce on both the top and bottom of Ciabatta.
7Add 2 slices of fried ham, the burger, 1/2 the mushrooms and onions, 2 slices browned salami. Add the top, can cut in half if prefer, is quite sloppy, but oh so good! Make sure you have a napkin handy. :)