To prepare the tortellinis, the first thing to do is cook them, prepare a pot with plenty of water when it starts to boil, add the tortellini and let them cook according to the manufacturer.
To prepare the sauce we put a saucepan to heat with the butter and a splash of oil, we put the flour to toast, when we see that it is we will add the milk, we will stir with some rods so that no lumps are made. Season with salt and pepper and add a little nutmeg. We mix.
When the sauce is there, which should be a little light, if necessary add more milk, add the grated cheese, stir until all the cheese melts.
Ha this mixture we add the mushrooms we mix everything.
We put the tortellini in a bowl and mix with the hot sauce. We can serve them like this or put a little grated cheese on top and brown them in the oven for 5 minutes.
recipe by Kitchen Recipes at https://www.lasrecetascocina.com/tortellinis-con-salsa-de-queso-y-champinones/