Cheesy Ham Lasagna Comfort Food (Print Version)

# Ingredients:

→ Main Ingredients

01 - Lasagna Sheets
02 - Sliced Ham
03 - Finely Chopped Onion
04 - Unsalted Butter
05 - All-Purpose Flour
06 - Semi-Skimmed Milk
07 - Egg Yolk
08 - Salt
09 - Ground Black Pepper
10 - Ground Nutmeg
11 - Grated Emmental Cheese
12 - Sliced Raclette Cheese

# Instructions:

01 - Preheat your oven to 200°C (400°F) with the fan on.
02 - In a blender, finely chop the onion.
03 - In a saucepan, melt 50g of butter over medium heat. Add 50g of flour and cook for 1-2 minutes, stirring constantly to create a smooth roux.
04 - Gradually whisk in 750ml of milk, ensuring there are no lumps. Add the chopped onion, egg yolk, salt, pepper, and nutmeg.
05 - Cook the sauce for 8 minutes, stirring continuously, until it thickens.
06 - Remove the saucepan from heat and stir in 100g of the grated Emmental cheese until fully melted and smooth.
07 - Lightly butter a baking dish. Spread a thin layer of Mornay sauce on the bottom.
08 - Arrange a layer of lasagna sheets over the sauce, trimming them to fit if necessary.
09 - Spread one-quarter of the Mornay sauce over the pasta, then top with two slices of ham and one-third of the sliced Raclette cheese. Repeat these layers of pasta, sauce, ham, and Raclette cheese twice more.
10 - Top with a final layer of pasta sheets, the remaining Mornay sauce, the remaining ham slices, and the remaining Raclette cheese.
11 - Sprinkle the remaining 50g of grated Emmental cheese evenly over the top.
12 - Bake in the preheated oven for 20 minutes, or until the top is golden brown and bubbly.
13 - Let the lasagna cool slightly before portioning and serving.

# Notes:

01 - For convenience, assemble the lasagna a day in advance and bake just before serving.
02 - Cheese Variations: Substitute Raclette with Gouda, Reblochon, Cheddar, or a combination of your favorite cheeses.
03 - Gluten-Free Option: Use gluten-free lasagna sheets to accommodate dietary needs.
04 - Storage: Store any leftover lasagna in an airtight container in the refrigerator for up to 3 days.
05 - Vegetarian Option: Replace the ham with grilled vegetables like zucchini, eggplant, and bell peppers for a meat-free alternative.
06 - Herb Enhancement: Add a tablespoon of chopped fresh parsley to the Mornay sauce for extra flavor.
07 - Pre-cooking Lasagna Sheets: If using dry lasagna sheets, pre-cook them according to package instructions before assembling.