Combine all ingredients except baguette in small bowl.
Arrange baguette slices in a single layer on baking sheet; spread cheese mixture on baguette. Broil until the cheese is melted and golden, about 3 minutes.
Also terrific with Hellmann's or Best Food Light Mayonnaise.
TIP: Cheese mixture can be made up to 1 day ahead. Combine as above and refrigerate covered until ready to use