Melt butter in a heavy skillet over medium low heat.
Spread fig jam and goat cheese on one slice of bread. Sprinkle the basil and sundried tomatoes on top, then add the prosciutto in "piles." Layer the provolone cheese on top of the prosciutto before adding the last slice of bread.
Put the sandwich in the skillet when it is hot and the butter is melted. Using a spatula, press the sandwich down a bit as it cooks until it is golden brown, about 5 minutes. Flip and repeat.