Pesto Panini without the Press

Who says you have to have a Panini Press to make AWESOME Panini? All you need are quality ingredients and you can make the BEST Pesto Panini on a grill pan! These babies are full of Pesto, roast beef, Provolone cheese and thick slices of tomatoes. Slather some chunky sourdough bread with butter and grill just a few minutes on each side. How's that for dinner in 15 minutes?