8 slices French bread (1/2 inch thick)
4 slices (4 oz.) Sargento Preferred Light Sliced Swiss Cheese, cut in half, divided
1 medium tomato, cut into 8 thin slices
4 ounces thinly sliced lean deli roast beef
2 tablespoons light mayonnaise
Top 4 bread slices with half the Swiss cheese and all the tomato and beef slices.
Top beef with remaining Swiss cheese and bread slices.
Combine mayonnaise, mustard and chives.
Spread mayonnaise mixture on outside of sandwiches.
Grill over medium heat in