panini style grilled cheese and pesto

I would often make grilled ham and cheese sandwhiches on our George Forman. It reminded me of the panini grill at the Marketplace Cafe in the atrium of the Tanner Building at BYU. Delicious. A friend of mine told me about a pesto sandwich she makes with Trader Joes bread and now it's a favorite at our house as well.
Sourdough bread (I like the 4 cheese kind at Trader Joes)

Pesto Sauce (also buy this at TJs- near the hummus)

Cheese (usually mozzarella, but whatever)

Sliced tomatoes, left over rotisserie chicken, or whatever sounds good

Spread butter on outside of bread, pesto on inside. Layer one piece of bread with cheese, then tomatoes, and some more cheese (mostly to make sure it sticks to the other piece of bread). Place other slice of bread on top and throw it on 'the george' (as we call it).