Place 1 slice Cheddar, Swiss, Colby-Jack, and Muenster cheese on each of 6 slices of Texas toast. Spread about 2 tablespoons garlic and herbs cheese on remaining 6 slices of Texas toast, and place, prepared side down, on top of cheese slices. Spread butter on each side of sandwiches. Heat a nonstick skillet over medium-low heat. Cook sandwiches, covered, for 6 to 7 minutes on each side or until lightly browned and cheese is melted. Serve immediately.