1/2 cup finely chopped red onion
1 pound loaf Italian bread
12 ounces low-fat mozzarella cheese
1/4 cup low-fat mayonnaise
1 teaspoon dried marjoram, or basil

Heat oven to 350 degrees F. Slice loaf into 16 equal parts cutting through to within 1/2" of bottom of loaf. Combine remaining ingredients; mix to blend. Spread cheese mixture on cut surfaces of bread. Loosely wrap loaf in foil. Bake at 350 degrees F., 25 minutes or until heated through.