A cheesy, buttery, and nutritious avocado sandwich that's quick and easy to prepare. Perfect for breakfast or a kids' lunchbox, loaded with avocados, butter, and mozzarella cheese.
1: To make avocado mash, combine together mashed avocado, onions, tomatoes, cilantro, salt and black pepper in a small bowl.
2: To make the sandwich, spread butter on one side of each bread slice. Spread the avocado mash and sprinkle cheese. Then close with the other buttery bread.
3: Heat a large frying pan over medium-low heat. Brush with butter. Place the sandwich in the pan, and apply butter on the top of the sandwich. When one side is brown and cheese has started to melt, flip and brown the other side.
4: Slice and serve immediately.