Instructions

  1. Preheat oven to 325 degrees F.
  2. In a large skillet cook onion and garlic in hot margarine or butter over medium heat for 2 minutes.
  3. Add mushrooms and cook about 3 minutes more or until tender, stirring occasionally.
  4. Remove from heat.
  5. In a small mixing bowl combine the mozzarella, fontina, and herbs; toss to mix.
  6. In a greased 2-quart square baking dish place half of the bread cubes.
  7. Top with the mushroom mixture, cheese mixture, and prosciutto or Canadian-style bacon.
  8. Top with the remaining bread cubes.
  9. In a mixing bowl combine beaten eggs or egg product, milk, sour cream, mustard, and pepper.
  10. Pour over layers in dish.
  11. Cover and chill in the refrigerator for 2 to 24 hours.
  12. Bake, uncovered, for 55 to 60 minutes or until a knife inserted near the center comes out clean.
  13. Let stand 10 minutes.
  14. To serve, cut into squares; garnish with fresh thyme sprigs.