Asparagus Lasagna - cooking recipe

Ingredients

5 Tbsp. butter
2 green onions, sliced
1 lb. chopped mushrooms
1/4 c. flour
1 tsp. salt
1/8 tsp. pepper
2 1/2 c. milk
9 lasagna noodles, cooked and drained
2 lb. asparagus, steamed and cooled
16 oz. Ricotta cheese
8 oz. Monterey Jack cheese, shredded
1 c. grated Parmesan cheese

Preparation

Cook onions and mushrooms in melted butter until mushrooms are tender.
Stir in flour, salt and pepper. Gradually add milk. Cook, stirring until thickened, about 8 minutes.