I think the OP was asking for sandwich maker recipes, not sandwich recipes. You can’t use a baguette in a sandwich maker.
One that I like to make in the mornings is scrambled egg, cheese, and (vegetarian in my case) bacon pieces. An afternoon snack we like is tomato, swiss cheese and (vegetarian in my case) ham.
Braise it then broil it til crispy. Slice (if it doesn’t just shred) and consume with lots of spicy mustard. I did that this last St. Pats and it was a hit. No leftovers.
Stuffed French toast.