Unique Lasagna - cooking recipe

Ingredients

10 ounces lasagna noodles
4 quarts water
2 lbs white potatoes, peeled and chopped
4 cups water
10 ounces frozen chopped spinach (I used fresh)
1/2 cup water
1 lb mushroom, chopped
2 teaspoons oil
28 ounces pasta sauce

Preparation

Cook Noodles in 4 quarts of boiling water in a large pot for 10 minutes until tender. Drain.
Meanwhile, cook potatoes in 4 c boiling water in a medium-size pot for 15 minutes. Drain and mash potatoes.
Cook spinach in 1/2 c water in a small pot over medium heat. Drain off any excess liquid.
Saute mushrooms in oil in a large frying pan over medium heat for 5 minutes.
Preheat oven to 375. In a 13x9x2 pan place the following layers: 1/2 cooked noodles, 1/2 mashed potatoes, all of the cooked spinach, 1/2 pasta sauce, remaining cooked noodles, remaining mashed potatoes, all the saugeed mushrooms, and the ramaining pasta sauce.
Bake 30 minutes and serve hot.