Heat olive oil in large skillet and cook onion and carrots over medium heat, stirring occasionally, until onion is tender, about 3 minutes. Add ground beef, oregano and black pepper and cook, stirring occasionally, until ground beef is brown. Stir in tomato puree and cook 1 minute.
Stir in wine and bring to a boil over high heat, stirring occasionally. Reduce heat to medium and cook until wine is almost evaporated, about 12 minutes. Stir in diced tomatoes and Knorr® Homestyle Stock - Beef until Stock is melted. Stir in Hellmann's® or Best Foods® Real Mayonnaise and Worcestershire sauce. Reduce heat to low and simmer covered, stirring occasionally, 1 hour. Serve over hot cooked spaghetti.