Preheat the oven and bake toast according to package directions.
Heat a teaspoon of olive oil in a small saucepan and cook garlic for 30 second; until fragrant. Add tomato sauce and seasonings and bring to a boil. Reduce heat and simmer for 5-7 minutes. Stir in chicken and cook until heated through. Stir in half of cheeses until melted.
Divide chicken mixture over two slice of cheese toast. Sprinkle remain cheese on top and place under the broiler for 2-3 minutes, or until cheese is melted.
Garnish with fresh parsley or basil (if desired) top with another slice of toast and serve hot.