Preheat oven to 375°F (190°C). Heat Dutch oven or high-sided ovenproof skillet on medium heat on stove. Add bacon. Cook until fat starts to render, approx. 3 min. Add beef and brown all sides, approx. 5 min. Stir in carrots, leeks and rosemary. Cook until vegetables start to soften, approx. 3 min.
Add tomato paste. Cook, stirring, 1 min. Stir in broth and beans. Bring to a boil. Cover and transfer to preheated oven. Bake 35 to 40 min., or until beef is tender.
Serve with crusty bread and green salad for a satisfying dinner.