Spaghetti Bolognese Recipe from Jessica Seinfeld

Ingredients

• 1 yellow onion
• 2 ribs celery
• 4 cloves garlic
• 8 medium button mushrooms
• 3 tablespoons extra virgin olive oil
• 2 teaspoons kosher salt
• 1½ pounds ground chuck
• ¼ cup tomato paste
• ½ cup dry white wine, such as pinot grigio
• 28-ounce can whole tomatoes
• ¼ to ½ teaspoon crushed red pepper flakes
• ¼ teaspoon freshly ground black pepper
• ¼ teaspoon grated nutmeg
• 1 cup whole milk
• 1 pound spaghetti
• ¼ cup grated Parmesan, plus more for serving