Heat Olive oil in a large pan over medium heat
Season beef with salt and pepper, to taste. Add beef to the pan and brown evenly approximately 2-3 minutes
Place Beef, Potatoes, carrots, onion and garlic into a slow cooker. Stir in beef broth, Tomato paste, Worcestershire, Rosemary and bay leaves until well combined.
Cover and cook on low for 7-8 hours
In a Small bowl , whisk together flour and 1/2 cup of stew broth. Stir in flour mixture into the slow cooker. cover and cook on high heat for an additional 30 minutes, or until thickened.
serve immediately with mashed potato and crusty bread
