1. Cream the goat cheese, thyme and pepper; set aside.
2. In a deep skillet or Dutch oven over medium heat, cook bacon, onion and caraway seeds until bacon is crisp and onion is softened, stirring often.
3. Add cabbage, walnuts, vinegar, brown sugar and salt and pepper to taste; braise, covered, over moderately low heat, stirring occasionally, until cabbage is crisp-tender, about 20 minutes.
4. While cabbage is braising, cut bread into 1/2 thick slices and toast on baking sheet in the middle of a preheated 350° oven for 6 minutes.
5. Put goat cheese mixture in pastry bag and pipe onto the toasted rounds; bake in same 350° oven until golden, 5-7 minutes.
6. Divide cooled cabbage salad and toasts between 4 plates and serve.