-
1
Preheat oven to 350 degrees F.
-
2
Cut squash into thin slices and place on a baking sheet.
-
3
Drizzle with 1 tablespoon olive oil.
-
4
Add salt and pepper to taste and toss to coat.
-
5
Arrange in an even layer and roast 15 minutes.
-
6
Toss the squash and roast about 15 minutes more or until the squash is soft.
-
7
Remove from oven and set aside; leave your oven on.
-
8
While the squash is roasting, cook the lasagna noodles according to package instructions.
-
9
Once al dente, drain and rinse under cold water to prevent sticking.
-
10
In a medium skillet, heat 1 tablespoon olive oil over medium-high heat.
-
11
Add garlic and saute 2 minutes.
-
12
Stir in spinach and 1 tablespoon basil.
-
13
Cook about 1 minute or until spinach is wilted.
-
14
Remove from heat and set aside to cool.
-
15
In a medium saucepan, heat last tablespoon of olive oil over medium-high heat.
-
16
Add flour and whisk for 1 minute.
-
17
Slowly whisk in milk an the pinch of salt; bring to a boil, whisking constantly.
-
18
Continue whisking for 2 more minutes or until white sauce thickens.
-
19
Remove from heat.
-
20
Stir ricotta into spinach.
-
21
Add egg and oregano; stir.
-
22
Season with salt and pepper.
-
23
Coat a 9x13-inch baking dish with cooking spray.
-
24
Spread about half the sauce evenly in the bottom of dish.
-
25
Arrange of a layer of 3 noodles over the sauce.
-
26
Gently spread half the ricotta and spinach mixture over the noodles and top with roasted squash.
-
27
Sprinkle half the mozzarella over squash.
-
28
Top with remaining ricotta and spinach mixture, followed by the remaining noodles.
-
29
Top with remaining sauce, basil, then mozzarella.
-
30
Coat a sheet of aluminum foil with cooking spray.
-
31
Tent foil, sprayed side down, over lasagna.
-
32
Bake 25 minutes.
-
33
Remove foil and bake an additional 15 minutes to brown the cheese slightly.
-
34
Let lasagna rest about 5 minutes before cutting.