Now, fill up your sandwich with something yummy.
Tuna, cheese, salami, cooked vegetables, mix of beef, potatoes and veggies... what ever you like.
Bake in for about 3 minutes or so. Depending how crunchy you want your sandwich to be.
And voila - you have nice and quick dinner.
Waffle Iron tip:
If you don't want the teflon peeling off after some time, just don't even use oil or butter. I don't use any of them, waffles never stick and iron looks like I bought it today.