Idea one: take a wheel of Brie and cut it into wedges but keep it in wheel shape. Cut a Granny Smith or other tart apple into thin wedges and place snugly between the brie wedges. Cover with walnuts and 1/2 cup or so of Brown sugar, bake at 350 for about 20-30 minutes until the whole mess gets nice and melty.
Serve with crackers and/or further wedges of tart apple.
Idea two: Fruited Brie en Croute. Wheel of brie, topped generously with a mixture of your choice of dried cranberries, nuts (walnuts especially), raisins, and the like, chopped together and mixed with some sherry or other appropriate liquid, enclose the whole in puff pastry, bake (about 425 F. until golden), and serve it forth. Sizes, portions, and proportions depend on how much you have available, really — this is an algorithm more than a recipe. Divine while still warm, not bad either when cooled. Serve with crackers or slices of crusty bread.)
Idea three: Fix the above but eliminate the puff pastry, bake as directed perhaps under a tent of foil.
Idea four: Brie, Granny Smith, and walnuts as a salad with arugula and a raspberry vinaigrette.
Idea five: Brie, sprinkle with toasted almond slices and honey, pop into oven
until it starts to get runny. Food of the gods.
Idea six: Barbeque Marinated Brie