Preheat your panini grill or a grill pan over medium heat.
Spread some of the shredded cheese on the bread then layer it with tomato and avocado and season with a bit of sea salt and freshly cracked pepper before adding a little more cheese. Place the other slice of bread on top.
Place into your panini pan (or grill pan). Cook for 5 minutes or until crispy and golden brown. Serve immediately. Enjoy!
Side Note: I always cook my paninis dry. I find that using oil or butter on the bread makes the sandwich too greasy. Try it – I bet you will like it and it’s way better for you!