Mix together peppers, pine nuts, olives, raisins, oregano, and oil. Let stand for 30 minutes. Meanwhile, let cheese stand at room temperature.
Preheat oven to 375 degrees. Bake cheese in an ovenproof serving dish until just starting to melt around the edges, 5 to 7 minutes. Top with relish. Garnish with oregano. Serve immediately. (Reheat cheese in oven for about a minute if it starts to set.)