Nonna's Homemade Ravioli

Ingredients

• olive oil
• 2 pounds beef — twice ground
• 1/2 pound veal — twice ground
• 1/2 pound pork — twice ground
• 1/2 cup finely chopped onion
• 1/2 cup chopped celery finely
• 1 tablespoon garlic — crushed
• salt
• pepper
• 32 ounces chopped frozen spinach — thawed and pressed dry
• 16 ounces ricotta cheese
• 2 eggs — lightly beaten
• 1 3/4 cups bread crumbs
• 2 tablespoons all purpose flour
• 1/2 cup grated cheese
• 1 teaspoon nutmeg
• 3 eggs
• 3 cups all purpose flour
• 1/2 cup water — or a mixture of water and milk
• 1 tablespoon vegetable oil