Start by slicing the avocado and fresh tomatoes into even pieces. Next, grate or slice the mozzarella cheese to ensure it melts beautifully.

Take two slices of your chosen bread and lay one slice on a clean surface. Begin layering with the creamy avocado first, followed by the gooey mozzarella and then the juicy tomatoes. Top with the second slice of bread.

Heat a non-stick skillet over medium heat and add a generous pat of butter or a splash of olive oil. Once the butter is melted and bubbling, place the assembled sandwich in the skillet. Grill for about 3-4 minutes until the bottom is golden brown and crispy.

Carefully flip the sandwich using a spatula, ensuring the other side is coated in melted butter or oil. Grill for an additional 3-4 minutes, pressing down gently for even cooking.

Once perfectly grilled, remove the sandwich from the skillet. Allow it to rest for a minute, then cut in half to serve immediately