Preheat oven to 180 degrees C. Lightly grease a medium casserole dish.
Bring a large pot of lightly salted water to a boil. Place pasta in the pot, cook for 8 to 10 minutes until al dente, and drain.
In a frypan over medium heat, cook the pork mince until evenly brown.
In the prepared casserole dish, mix the cooked pasta, pork and pasta sauce. In a bowl, mix the cottage cheese, olives and mozzarella cheese. Spoon the cheese mixture over the pork and pasta mixture. Top with pepperoni slices.
Bake 25 minutes in the preheated oven, until bubbly and lightly browned.