"Grilled cheese used to be your favorite sandwich," notes The Big Cheese truck’s site. "What happened? You grew up. Isn't it about time your sandwich did, too?" So what does that mean? Cheese from Cowgirl Creamery and bread from Lyon Bakery. The Thrilled Cheese (chipotle Cheddar with jalapeño and guacamole on sourdough) has to be a draw, but the Cherry Glen may be the truck’s true calling, something you’ve rarely seen: a grilled cheese with chèvre and lemon fig jam.