Casserole Napoli - cooking recipe

Ingredients

1 lb ground beef
1 teaspoon salt (or to taste)
1 small onion, chopped
1 (16 ounce) can tomato sauce
1 cup water
1 teaspoon sugar
1/4 teaspoon oregano
1/4 teaspoon nutmeg
1 (8 ounce) package noodles
2 (10 ounce) packages spinach (thawed and drained)
1 cup ricotta cheese
1/2 cup sour cream
1/4 cup grated parmesan cheese

Preparation

Brown beef; add salt and onion. Cook 5 minutes. Add tomato sauce, water, sugar and spices. Set aside.
Cook noodles until barely tender. Drain. Add meat sauce mixture.
Squeeze dry spinach and chop coarsley.
In 3-quart casserole dish, layer half of meat sauce mixture, add next layer of spinach, then remainder of meat sauce mixture.
Blend ricotta and sour cream. Spoon over top. Sprinkle with Parmesan cheese.
Bake 25-30 minutes in a preheated 375-degree oven.