Heat broiler. Halve baguette crosswise, then lengthwise. Place cut sides up on large baking sheet. Brush with the 1 tablespoon oil. Broil, 3 to 4 inches from heat, for 1-1/2 to 2 minutes or until lightly toasted.
Slice and divide cheese among toasts. Top with sliced berries. Broil 2 to 3 minutes or until cheese and berries soften. Remove from broiler; top with arugula. Drizzle additional oil. Sprinkle salt, pepper, and herbs. Makes 4 servings.