Naples - It's to Die for - Lasagna

This lasagna was a main dish at my sister's restaurant.Everyone who eats its raves about it.The sauce freezes well.

BECHEMEL Sauce: In pot melt butter and add enough flour to create a consistency thicker than pancake batter.
Bring another pot with milk almost to a boil.
Once milk has heated through, add milk all at one time to the flour mixture, beating with wire whisk the whole time.
Bring back to boil then remove from heat and add salt and nutmeg.
Set aside.
MEAT SAUCE: Brown meat half way then add onions, garlic, carrots, celery and sweat vegetables.
Add all other ingredients and cook a minimum of 2 hours at a low ( barely ) boil.
ASSEMBLY: Use Barilla lasagna sheets!
(1 box serves 6-8 in this recipe).
Boil some water and slide them in for 5 minutes then drain and rinse well with cold water, they need to be soft and flexible.
Ladle some meat sauce on the bottom of the pan.
Then lay a layer of pasta sheets on top of that.
Then spread bechemel sauce over pasta, layer of pasta, spread both cheeses on that layer, layer of pasta, spread more bechemel, layer pasta then cheeses until all is used.
Bake in 350° oven until brown on top (just a little brown).
Remove and let set for 5 minutes.
Cut serving squares and place on plates then ladle a large ladle of meat sauce atop the lasagna.
Garnish with lots or parmesan cheese.