Lasagna Love

This has always been my favorite food.
John makes it best. Here is his recipe:

Basic Ingredients:
1 medium onion
1 lb hamburger
3 Tbsp olive oil
1 large can (28 oz) crushed tomatoes
1 8 oz can tomato sauce
salt & pepper
basil (fresh is best)
1 box lasagna noodles -- ubiquitous Barilla
1 lb shredded mozzarella cheese
grated fresh parmesan cheese

Besciamella ingredients:
4 Tbsp - flour
6 Tbsp - butter
3 cups 1% milk (hot)
1/2 teaspoon ground nutmeg

Ragu Instructions
Dice/chop medium onion.
Saute in olive oil until transparent on medium heat.
Brown ground beef -- add salt & pepper to taste. Drain off excess fat.
Add crushed tomatoes and tomato sauce.
Add basil to taste. Simmer for 30-45 mins.

Besciamella Instructions
(do this while your sauce is simmering)
Melt 6 tablespoons butter. Add flour slowly and whisk.
Continue to cook until golden. Add milk -- 1 cup at a time, whisking constantly.
Add nutmeg. Whisk constantly until mixture thickens, but do not allow to boil.

Lasagna Noodles
(cook these while sauce/besciamella are cooking):
Cook box of lasagna noodles according to instructions. Don't overcook.
Drain. Rinse with cold water until cooled, so you can handle them.
You will use 9 - 12 noodles depending on whether you do a 3-layer or 4-layer lasagna.

Assembly
Place meat sauce on the bottom of your pan.
Add three lasagna noodles.
Add meat sauce on top of the noodles.
Add besciamella sauce (about 1/2 - 3/4 cup).
-Repeat for each layer-
Add mozzarella to top layer, top with parmesan.
Bake for 45 minutes at 350 degrees F., covered with foil the first 30 mins.

Delicious.