Combine flour and 1-1/2 teaspoons paprika in a large resealable bag. Add beef to bag in two batches; shake to coat with flour, then remove from bag.
Heat 1 tablespoon oil in a large nonstick skillet over medium-high heat. Cook beef in batches, if necessary, for 5 minutes, turning occasionally, or until browned. Place beef in slow cooker.
Reduce heat to medium; add 1 teaspoon olive oil. Add onion and sprinkle with 1/4 teaspoon each paprika, salt, pepper and cinnamon. Cook 4 minutes. Stir in tomato paste; cook 2 minutes, stirring. Place in slow cooker.
Add tomatoes and broth to skillet; bring to a boil; pour into slow cooker. Cover; cook for 5 hours on HIGH or 7 hours on LOW. When there is 1-1/2 hours cook time remaining for both methods, add parsnips and prunes to slow cooker. Stir in remaining 1/4 teaspoon each paprika, salt, pepper and cinnamon, and the brown sugar just before serving. Serve over rice, if desired. Makes 6 servings.