- 25 mins
- 60 mins
Ingredients
- Sauce:
- 2 tbls unsalted butter
- 4 tsp all-purpose flour
- 1/4 cups whole milk
- 1/4 tsp salt
- 1/8 tsp blk pepper
- pinch ground nutmeg
- Lasagna:
- 1 15 ounce container whole milk ricotta cheese
- 1 10 ounce package frozen chopped spinach, thawed, squeezed dry
- 1 cup plus 2 tbls parmesan
- 3 ounces thinly sliced prosciutto, choppes
- 1 large egg, beaten to blend
- 3/4 tsp salt, plus more for saltin water
- 1/2 tsp freshly ground bld pepper
- 1 to 2 tbls olive oil12 uncooked lasagna noodles
- 2 cup marinara sauce
- 1 cup shredded mozzarella ( 4 ounces)
Preparation
Step 1
To make 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 int the béchamel sauce.
Preheat the oven to 450% F.
Whisk the ricotta, spinach, 1 cup parmesan, prosciutto egg,salt, and pepper in a medium bowl to blend.
Add a tbls 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 13x9x2 glass baking dish. Pour the béchamel sauce over the bottom of the prepared dish. Lay out 4 lasagna noodles on a work surface, then spread a large (about 3 tbls worth) 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 béchamel 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 the remaining e tbls 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 sauce in a heavy small saucepan over medium heat until hot, and serve alongside.