Start by making the glaze. Meanwhile, combine the olive oil, garlic powder, onion powder, dried oregano, dried marjoram, and ground thyme.
1
Lay the bread slices over a baking sheet and brush with the olive oil mixture. Toast under the broiler.
2
Sprinkle some mozzarella over the toast. Add the tomatoes and brush them with the remaining olive oil mixture. Top with remaining mozzarella and Parmesan.
3
Broil. Drizzle with balsamic reduction, then top with basil and parsley. Serve.
4