Place the tofu on a work surface and top with a cookie sheet and 2 or 3 heavy cans or pans. Let stand for about 1 hour, or until tofu is very firm and liquid has been pressed out. Pat the toful dry.
In a small bowl, whisk the jalapeno jelly with the ketchup,soy sauce, sesame oil and 1 tbls. lime juice.
In a large bowl, mix sugar with garlic and minced jalapeno. Using the side of a spoon, mash the mixture to a paste. Add the fish sauce and remaining 1 tbls. of lime juice. Stir in the jicama, carrots, cilatro and mint.
Light a grill or turn on the broiler. Brush the tofu and the cut sides of the rolls with the olive oil. Lightly grill(or broil) the rolls, about 2 minutes. Grill or broil the tofu until lightly charred, about 8-10 minutes. Brush on the jalapeno jelly glaze and grill(or broil), turning and brushing until nicely glazed, 2 to 3 minutes longer.
Spread a thin layer of mayonnaise on both halves of each kaiser roll. Mound the jicama slaw on the rolls and top with the tofu steaks. Colse the sandwiches, cut in half and serve! Enjoy!