I have no idea what Rounders is....but, if I had those ingredients:
Saute the apples in butter.
Drizzle a bit of olive oil on the bread, and then rub the garlic onto the bread.
Toast it a bit.
Lay the cheese on the bread, and then toast it some more, till it melts. Brie melts. Fake, for decoration brie even melts. I have no idea why this brie didn't melt, except that it might have been made of plaster. Was it unusually heavy?
After the cheese melts, lay the sauteed apple slices on it, and then eat it.