Apple, Avocado, Bleu Cheese Panini

2 slices whole wheat bread
1/4 of a thinly sliced apple
1/4 of an avocado
Red onion
spinach leaves
bleu Cheese crumbles

Spread avocado on one slice of bread, top with apple, spinach, onion, and bleu cheese crumbles.  Top with the other slice of bread and grill on panini maker (or George Foreman grill) until brown and cheese is melted.