-
1
Preheat oven to 375 degrees F.
-
2
Heat oil in a large pot over medium-high heat.
-
3
Add red onion, green onion, garlic and celery.
-
4
Saute until onion is translucent and celery starts to soften.
-
5
Add other veggies, one by one, stirring before adding the next.
-
6
Cover and cook 5 minutes, stirring once.
-
7
Uncover and cook til vegetables are tender, stirring often, about 10 minutes longer.
-
8
Season with salt and pepper.
-
9
Melt butter in large sauce pan over medium heat.
-
10
Whisk in flour.
-
11
Whisk 2 minutes.
-
12
Gradually whisk in milk.
-
13
Cook until mixture comes to a boil, whisking often.
-
14
Remove from heat and season with salt and pepper.
-
15
Spoon 1 cup of sauce over bottom of your lasagna pan.
-
16
Arrange 5 lasagna noodles atop sauce, overlapping slightly.
-
17
Spoon half of vegetables over noodles.
-
18
Spoon 1 1/2 cups sauce over veggies.
-
19
Sprinkle 1/3 of your cheese over sauce.
-
20
Repeat each layer once.
-
21
Top with the last 5 lasagna noodles.
-
22
Spoon remaining sauce over noodles.
-
23
Top with remaining cheese.
-
24
This is where you would refrigerate for later use, just cover tightly.
-
25
Bake Lasagna uncovered on center rack until sauce is bubbling, about 40 minutes, 55 minutes if previously chilled.
-
26
Remove from oven and allow to stand for at least 10-15 minutes before slicing.