Don't like warmed up food... I'd rather cook every day than to warm up... So all products in such numbers ;-) Onion, tomato and garlic cut into rings.

Potatoes peel and do each with three cuts. The incision in the middle to put a slice of tomato, and sides of onion and garlic. All this salt and put on a baking sheet lined with parchment and greased with vegetable oil. Cover it with another sheet of parchment. And put in the oven (I previously it is not warmed up).

After 15 minutes to coat the potatoes with mayonnaise and put back in the oven. More minutes to get through and put the pieces of cheese on the potatoes (I have only had this cheese, but I think regular would be better) and clean up again in the oven for 5 minutes.

Digression: Buy 10 packs of chips and collect a potato!