Prepare the sandwich: Lay out your slices of bread. On one slice, layer the sliced mozzarella cheese, tomato, and avocado. Sprinkle with a pinch of salt and pepper to enhance the flavors.
Close the sandwich with the other slice of bread.
Grill the sandwich: Heat a non-stick skillet or griddle over medium heat. Spread butter (or drizzle olive oil) on both sides of the sandwich.
Place the sandwich on the skillet and cook for 3-4 minutes on each side, or until the bread is golden brown and crispy and the cheese is melted.
Serve: Once the sandwich is grilled to perfection, remove it from the skillet. Let it sit for a minute, then slice in half. Garnish with fresh basil leaves if desired. Serve hot and enjoy!
Kcal: Approximately 400-500 kcal per sandwich (depending on bread and ingredients)
