Quarter, core and thinly slice the pear and mix with 1/2 tablespoon lemon juice. Clean the chicory and cut lengthways into strips. Dice Limburgers. Preheat a tray in a hot oven at 250 °.
Unroll the tarte flambée dough with the parchment paper. Brush the dough with crème légère. Spread the pear slices, chicory and cheese on top. Season with a little salt and pepper. Put the tarte flambée with the paper on the hot sheet and bake in the hot oven at 250 ° in the lower third of the oven for 15 to 20 minutes (convection not recommended). Clean the radicchio and cut into strips. Mix with 1 tablespoon lemon juice and olive oil, season with salt and pepper. Sprinkle tarte flambée with radicchio and serve immediately.