Andrea Spadoni's Deluxe Grilled Cheese

This was cut out of a magazine....don't know which one, but the author is Andrea Spandoni.....thus she gets the credit!

• Ready In: 20 mins
• Serves: 4

Ingredients

• 1  cup swiss cheese, shredded (4 oz)
• 1  cup cheddar cheese, shredded (4 oz)
• 1⁄3 cup mayonnaise
• 1  tablespoon prepared mustard
• 1  tablespoon green onion, finely chopped
• 8  slices  bread
• 1⁄4 cup butter, softened

Directions

1. Combine the first 5 ingredients. Spread mixture evenly on one side of 4 slices of bread to within 1/4 inch of the edges. Top with the remaining bread slices.
2. Spread the outside of each sandwich with softened butter.
3. Place the sandwiches on a hot griddle; cook over medium heat until bread is golden, turning once.