If you're looking for a warm and toasty veggie sandwich, try a grilled veggie panini. Start by grilling your favorite vegetables such as zucchini, bell peppers, and eggplant. Then, assemble your sandwich by layering the grilled veggies on a crusty bread like ciabatta or focaccia. Add some melted cheese like mozzarella or provolone for extra richness. You can also spread some pesto or sun-dried tomato aioli for added flavor. Grill the sandwich in a panini press or on a stovetop grill until the bread is crispy and the cheese is melted. Enjoy this delicious and satisfying sandwich with a side of soup or salad.