Keema Curry with Cucumber Raita

Ingredients

• 500 g lean ground beef
• 1 onion (finely chopped)
• 450 g potatoes (peeled and diced)
• 3 garlic cloves (chopped)
• 2cm piece fresh ginger (finely chopped)
• 1 cinnamon stick (halved)
• 1 tsp turmeric (turmeric)
• 1 tsp cumin seeds (roughly crushed)
• 1 tsp coriander seeds (crushed)
• 1/2 tsp crushed dried chilies
• 1 540ml can diced tomatoes
• 1 1/4 cups reduced-salt beef stock
• pepper (to taste)
• 150 g to taste
• fresh mint leaves (to garnish)
• 150 g plain low-fat yogurt
• 1/4 cucumber (finely diced)
• 4 tsp fresh mint (chopped)