Beef and potato casserole

Ingredients

• 1 kilogram beef chuck steak, cut into 2cm pieces
• 1/2 cup plain flour
• 2 tablespoons olive oil
• 3 brown onions, halved
• 2 cloves garlic, crushed
• 2 rindless bacon slices, chopped coarsely
• 2 tablespoons tomato paste
• 3 cups beef stock
• 400 grams can crushed tomatoes
• 1/4 cup worcestershire sauce
• 2 potatoes, chopped coarsely
• 1 kumara, chopped coarsely
• 1 red capsicum, chopped coarsely
• 1 tablespoon fresh thyme leaves
• mashed potato, to serve (optional)
• crusty bread, to serve (optional)