Blue Roast Beef Sandwiches

This is an easy to assemble, make-and-take sandwich, perfect for a picnic in the park!

Ingredients: (4 sandwiches)
8 slices whole wheat bread
mayonnaise
1 pound deli roast beef, thinly sliced
1/2 cup crumbled blue cheese
4 slices mozzarella cheese

Directions:
Spread each slice of bread with mayonnaise. I like about 2 tablespoons on each slice (I'm a condiment lover).
Separate the roast beef and crumbled blue cheese into fourths.
Layer with roast beef - crumbled blue cheese - mozzarella cheese.
Now taste your new favorite sandwich!

Make the Blue Roast Beef Sandwich even better with caramelized onions
http://www.ehow.com/how_5097085_caramelize-onion.html