Christmas Night Manicotti - Big Recipe

Ingredients

• 6 eggs, divided
• 3/4 teaspoon salt, divided
• 2 cups all-purpose flour
• 2 1/4 cups milk
• 1/4 cup unsalted butter, melted
• vegetable oil, to taste
• 1 (15-ounce) container ricotta cheese
• 1 (10-ounce) package frozen chopped spinach, thawed, drained and squeezed dry
• 1/2 cup parmesan cheese, grated
• 3 ounces cream cheese, softened
• 1/4 cup fresh parsley, chopped, plus more, to taste, for garnish
• 3 tablespoons green onions, chopped
• 1 tablespoon onion powder
• 1 teaspoon dried oregano
• 2 cups marinara sauce, divided
• 1 cup mozzarella cheese, shredded