In a mixing bowl, add cheese, jalapeños, sliced kalamata olives, avocado, cilantro and onions.
Cut off the ends of the baguette, then slice the crust off the top and bottom and butter both top and bottom.
Cut the baguette lengthwise through the middle and spread sundried tomato tapenade on the inside of both halves.
Add the mixed ingredients to one side of the open-faced bread and close it.
Warm a skillet to medium temperature.
Once both sides are browned and the cheese has melted, remove skillet from heat, slice sandwich in half and enjoy!