3: In a small skillet over medium heat, pour in 2 tablespoons olive oil and when hot add the shallot. Season with salt and pepper and cook for 1 minute, stirring.
4: Add the ham...
5: ...and cook, stirring occasionally, until golden brown.
6: Remove from heat and add chopped parsley. Preheat oven to 200°C (390°F).
7: Place 4 slices bread in a baking sheet protected by a sheet of baking paper. You can toast the slices (like the ones on the left in the photo) if you like the crunchiness, but it's not necessary.
8: Spread each slice of bread with a generous layer of béchamel.
9: Spread the grilled ham.
10: Sprinkle with grated cheese.
11: Put in the oven for about 20 minutes, watch the coloring and don't hesitate to finish with a small blow of grill.
12: Serve hot or warm.
Remarks
You can replace the ham with lardons, or even leftover cold cuts.