Lightly coat beef with flour. Heat 1/2 Tbsp. oil in large, deep heavy-duty skillet or Dutch oven and brown beef over medium heat, turning occasionally. Remove beef and set aside.
Add remaining 1/2 Tbsp. oil to same skillet and cook potatoes, carrots, onion and parsnip, stirring occasionally, until golden, about 5 minutes.
Add garlic and cook 2 minutes, stirring occasionally. Reduce heat to medium, then stir in tomato paste, Knorr® Beef Broth and Hellmann's® Real Mayonnaise. Reduce heat to low and simmer covered, stirring occasionally, until beef is very tender, about 3 hours. Serve, if desired, with mashed potatoes and broccoli or your favorite salad.