Evenly spread the tomatoes on a cookie tray. Drizzle with olive oil, salt and pepper. Arrange the garlic and fresh thyme on top of the tomatoes. Roast at 400 for 20 minutes.
Brush the baguette slices with olive oil and garlic salt. Bake as the tomatoes are baking for about 5-10 minutes. Remove from the oven and let cool.
Place the three types of cheese, seasonings and fresh bail in a food processor. Blend until the mixture has a whipped consistency - about 5 minutes.
To assemble, spread the cheese on the cooled baguette slices, then pile on the roasted tomatoes. Sprinkle a little more fresh basil on top before serving.