(1) Tarte Tatin is best done in a pan that can go on the hob then directly in the oven. You can buy Tarte Tatin pans (mine is a 28cm job), or use a heat resistant frying pan, or just use two pans and a bit of mucking around in the middle.
(2) You can use other fruit, bananas are good. Bernard experimented a bit but I stick to apple. See also the note about quantities of fruit.
(3) You can use commercial pastry. About 350 grams of Puff pastry, rolled out, can replace the Pâte Brisée. Certainly much easier. After assembling the tarte as usual bake at 220ºC for 15 minutes or until pastry has risen and is golden brown.
(4) Don't leave it too long because the caramel will harden making the flipping exercise a tad difficult.