Spaghetti with Bolognese Sauce

INGREDIENTS

• 1 tablespoon olive oil
• 2 onions, finely chopped (3 cups)
• 3 carrots, finely chopped (1 cup)
• 6 cloves garlic, minced
• 1 pound ground beef
• 1 pound ground pork
• 1/4 cup tomato paste
• Coarse salt and ground pepper
• 1 cup dry white wine
• 1 can (28 ounces) crushed tomatoes in puree
• 1 cup milk
• 12 ounces spaghetti
• Finely grated Parmesan cheese, for serving