Grilled quesadillas are wonderful for an impromptu dinner party. I like to invite friends over on a weeknight, set out a whole bunch of toppings, and let guests assemble their own quesadillas. Next, I throw the personalized quesadillas on the grill and heat them up, slice into wedges and enjoy! To avoid having to rip the tops off of the quesadillas to see whose quesadillas is whose, have your friends carve their first initial into a tortilla (like the ...