Lasagna Rolls

Got this from http://alittleofthisandsomeofthat.blogspot.com, but I changed some things:
Lasagna Rolls

by: Giada De Laurentiis
Sauce:
2 tablespoons unsalted butter
4 teaspoons all-purpose flour
1 1/4 cups whole milk
1/4 teaspoon salt
1/8 teaspoon ground black pepper
Pinch ground nutmeg
Lasagna:
1 (15-ounce) container whole milk ricotta cheese (I used cottage cheese because it was cheaper)I did use the ricotta
1 (10-ounce) package frozen chopped spinach, thawed, squeezed dry
I used fresh spinach and chopped it up
I also put in a clove of garlic and 4-6 large mushrooms all chopped up with the spinach
1 cup plus 2 tablespoons grated Parmesan
I used an Italian mix of cheese
3 ounces thinly sliced prosciutto, chopped ( I didn't use this but I bet it would be tasty)
I used Italian sausage 1lbs, couldn't find prosciutto. Just cooked up the sausage and mixed in with all the other ingredients.
1 large egg, beaten to blend
3/4 teaspoon salt, plus more for salting water
1/2 teaspoon freshly ground black pepper
1 to 2 tablespoons olive oil
12 uncooked lasagna noodles
I used only 10 noodles
2 cups marinara sauce
I used 4 cheese spaghetti sauce
1 cup shredded mozzarella (about 4 ounces)
I just used the Italian cheese (the bag is 2 cups)
Directions
To make the sauce: Melt the butter in a heavy medium saucepan over medium-low heat. Add the flour and whisk for 3 minutes. Whisk in the milk. Increase the heat to medium-high. Whisk the sauce until it comes to a simmer and is thick and smooth, about 3 minutes. Whisk the salt, pepper, and nutmeg into the bechamel sauce.
Preheat the oven to 450 degrees F.
Whisk the ricotta, spinach, 1 cup Parmesan, prosciutto, egg, salt, and pepper in a medium bowl to blend.
Add a tablespoon or 2 of oil to a large pot of boiling salted water. Boil the noodles until just tender but still firm to bite. Drain. Arrange the noodles in a single layer on a baking sheet to prevent them from sticking.
Butter a 13-by-9-by-2-inch glass baking dish. Pour the bechamel sauce over the bottom of the prepared dish. Lay out 4 lasagna noodles on a work surface, then spread about 3 tablespoons of ricotta mixture evenly over each noodle. Starting at 1 end, roll each noodle like a jelly roll. Lay the lasagna rolls seam side down, without touching, atop the bechamel sauce in the dish. Repeat with the remaining noodles and ricotta mixture. Spoon 1 cup of marinara sauce over the lasagna rolls. Sprinkle the mozzarella and remaining 2 tablespoons of Parmesan over the lasagna rolls. Cover tightly with foil. Bake until heated through and the sauce bubbles, about 20 minutes. Uncover and bake until the cheese on top becomes golden, about 15 minutes longer. Let stand for 10 minutes. Meanwhile, heat the remaining marinara sauce in a heavy small saucepan over medium heat until hot, and serve alongside.

Here is a picture of just before I put in the oven:





And after I cooked it!