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 :Lemon BrowniesVegan Blueberry PoptartsHealthy On-the-Go Meal Prep Snack Ideas15 Healthy Snacks That Are Tasty AF