Chicken Lasagna

Ingredients

• 8 to 10 lasagna noodles, cooked
• 2 c. cooked, diced chicken
• 2 Tbsp. margarine
• 1 medium onion, chopped
• 1/3 lb. mushrooms, sliced
• 1 jar Ragu garden-style sauce
• 1/2 tsp. oregano and basil
• 1/3 tsp. salt and pepper
• 3 Tbsp. margarine
• 3 Tbsp. all-purpose flour
• 10 oz. chicken broth
• 1/2 c. half and half
• 1 c. shredded Mozzarella cheese
• 1/2 c. Ricotta cheese
• Parmesan cheese (optional)