Try this hot, grilled, no-meat panini recipe with mozzarella, arugula, and grapes from California. An easy lunch idea for adults, this simple vegetarian sandwich can be made ahead and warmed up for a quick packed lunch. #forwork #easy #hot #vegetarian #foradults #makeahead #best #ideas #warm #grilled #paninis #party #quick #simple #recipes #packed #nomeat #prep