Melt the butter in a pot over medium-high heat, add the flour mixture, pepper, and nutmeg, and stir for 1 minute without stopping. Gradually add the milk (warm) and let it come to a boil.
Lower the heat slightly and, stirring constantly, let the sauce thicken for about 4-5 minutes.
Add 2 cups of cheddar cheese, 2 cups of fontina cheese, and 1/4 cup of Pecorino Romano cheese.
Season with salt and pepper.
Add the pasta and mix well.
In a bowl, mix 1 cup of cheddar cheese, 1 cup of fontina cheese, and 1/4 cup of Pecorino Romano cheese.
Place half of the pasta in the baking dish, then the cheese mixture, and then the rest of the pasta.
Sprinkle with breadcrumbs and cover with aluminum foil.
Bake for 30 minutes.
Uncover and continue cooking for another 10-12 minutes to let it brown.
Nutritional Information
* * Information per 100g serving, percentage of daily values based on a 2,000 calorie diet.
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