I've just tried this and it was yummm!! (and low carb!)
Peeled and seeded 1 avocado, cut it in 1/5 inches slices, put it in a dish with a couple tablespoons lemon juice and let it rest in the fridge for 1 hour.
The heated the electric grill and let the slices cook till they look dry enough. I didn't put any seasoning on them but they tasted soooo much like potatoes!!I bet if I did put my usual seasoning they'd come out just sooo similar!