Cheesy Buffalo Chicken Lasagna with Ranch Drizzle

Ingredients:
For the Lasagna:
12 lasagna noodles, cooked according to package instructions
3 cups shredded cooked chicken
1 cup Buffalo wing sauce (adjust for spice level)
1 (15 oz) container ricotta cheese
2 cups shredded mozzarella cheese
1 cup shredded cheddar cheese
1/4 cup grated Parmesan cheese
2 large eggs
2 cups Alfredo sauce
For the Ranch Drizzle:
1/2 cup ranch dressing
1 tbsp milk (optional, to thin)
For Garnish:
Green onions, chopped
Extra Buffalo sauce (optional)