Melt 10 g of butter in the saucepan over medium heat, add the flour and stir for 1 min. Pour in the milk a little at a time, whisking, season with salt and pepper and let it thicken for 3 min until it coats the spoon.
Tip · Whisk nonstop while you pour in the milk little by little so you don't get lumps. If it's too thick, add a spoonful of water.
Build the croque-monsieurs
Spread the béchamel on 4 slices of bread, add 1 slice of ham on each, then half the Swiss cheese, spread out evenly. Close them up with the other 4 slices.
Brown the first side
Melt half the remaining butter (5 g) in the skillet over medium heat. Lay the sandwiches in, cover and brown for 3 min.
Flip and melt
Flip the sandwiches with the spatula and add the rest of the butter (5 g) to the skillet if needed. Sprinkle the rest of the Swiss cheese on top, cover and let them brown for 3 min over low heat until the cheese melts.
Tip · Keep the heat low and the lid on the skillet so the cheese melts before the bread burns.
Make the salad
Wash and spin the half head of lettuce, tear it into pieces and season it with a pinch of salt and pepper.
Plate and serve
Cut the sandwiches in half on the cutting board. Serve them on the plates with the salad on the side.
And there you go, it's readyCheck off every step to celebrate.
The questions you're asking
short answers, numbers you can check
How many calories in a serving?
One serving has about 655 kcal. 37% comes from carbs, 24% from protein and 38% from fat.
60 gCarbs
39 gProtein
28 gFat
Per serving (the dish for 2, divided by 2)
Energy
655 kcal
Protein
38.8 g
Carbs
59.8 g
of which sugars
11.1 g
Fat
27.5 g
of which saturated fat
15.4 g
Fiber
4.1 g
Salt
2.9 g
Worked out ingredient by ingredient with the ANSES Ciqual 2025 table, never written by an AI. It's an estimate: veggie sizes and brands make the numbers vary.
How much does it cost?
About $2.55 a serving, adding up the average prices of the ingredients you need to buy.
≈ $5.11for 2 people
≈ $2.55a serving
Pantry salt, oil and spices aren't counted. Your store and your brands will move the total, but the ballpark is right.
How long does it keep?
Eat it fresh. Bread and wraps get soggy when they sit with the filling. Prep the filling ahead if you want, and put it together the day you eat it!