Sprinkle boneless Boston Butt Pork Roast liberally with Adobo all-purpose seasoning. Place in slow cooker. Add Mojo Crillio. Cook on low for 8 hours.
Remove, shred the meat and return to the juice in slow cooker.
Reserve 2 cups of meat for the sandwiches.
Cut bread in half then cut those halves in half vertically (you will have 4 pieces of bread: 2 tops and 2 bottoms). In a small bowl, mix mayonnaise and mustard together; spread on each piece of bread. Put 1-1/2 slices of Swiss cheese on 2 pieces of bread. On the bottom pieces of bread, add ham, roast pork and pickles. Place the top bread on the sandwich. Brush the tops and bottoms of the sandwiches with butter. Cut each sandwich into 2 equal pieces. Place in a sandwich press for 3-4 minutes, or until bread is golden.
If you do not have a sandwich press, cover a heavy garden brick with heavy duty aluminum foil. Place the sandwich in a large skillet over medium heat and put the brick on top of the sandwich. After 3-4 minutes, flip and repeat on the opposite side.
You can find Mojo Criollo and Adobo seasoning in the ethnic section of your grocer or online.