Grilled Mozzarella Sandwich This Grilled Mozzarella Sandwich is made with fresh tomatoes and walnut pesto grilled with sourdough bread. It's easy to assemble and bursting with flavor! Find a Recipes By Ingredients Share : You may like these posts :You'll Fall In Love With These Delicious Valentine's Day DessertsNo Bake Peanut Butter Granola CupsCinnamon Apple Quinoa BreakfastChicken and Broccoli Stuffed Spaghetti Squash