1 | Preheat the oven to 410°F (210°C).
Prepare 1 shallot. | ![Gratin slices with spinach : etape 25 Gratin slices with spinach : etape 25](/images/recettes/divers/tartines/523-1.webp) |
2 | Prepare 250 g cooked spinach then set aside. | ![Gratin slices with spinach : etape 25 Gratin slices with spinach : etape 25](/images/recettes/divers/tartines/523-2.webp) |
3 | Chop 2 hard-boiled eggs with a knife... | ![Gratin slices with spinach : etape 25 Gratin slices with spinach : etape 25](/images/recettes/divers/tartines/523-3.webp) |
4 | ...and mix with 100 g Bechamel sauce. | ![Gratin slices with spinach : etape 25 Gratin slices with spinach : etape 25](/images/recettes/divers/tartines/523-4.webp) |
5 | Cut 4 slices bread and remove the crust (optional). | ![Gratin slices with spinach : etape 25 Gratin slices with spinach : etape 25](/images/recettes/divers/tartines/523-5.webp) |
6 | Spread each slice of bread generously with the bechamel and egg topping and scatter grated cheese on top. | ![Gratin slices with spinach : etape 25 Gratin slices with spinach : etape 25](/images/recettes/divers/tartines/523-6.webp) |
7 | Cook in the oven for around 20 minutes until the top is browned. Finish under the grill if necessary. | ![Gratin slices with spinach : etape 25 Gratin slices with spinach : etape 25](/images/recettes/divers/tartines/523-7.webp) |
8 | Melt a knob of butter in a frying pan and cook the shallot with salt and pepper for 1 or 2 minutes without colouring. | ![Gratin slices with spinach : etape 25 Gratin slices with spinach : etape 25](/images/recettes/divers/tartines/523-8.webp) |
9 | Serve the gratin slices with the spinach on either side. | ![Gratin slices with spinach : etape 25 Gratin slices with spinach : etape 25](/images/recettes/divers/tartines/523-0.webp) |