For this sandwich I used my panini press, which I rarely do, because it's constantly covered in cheese and butter. But I gave it a very good cleaning and made myself a sandwich.
First I sauteed some slices of yam with some olive oil, balsamic vinegar, garlic, and agave (All out of maple syrup) while caramelizing some onions.
Once those were done I put them on the sandwich with some tomato and fresh spinach, and put it in the press. Which wilted the spinach slightly, and made a delicious sandwich!