Roast Beef Hash ? Recipe

Ingredients

• 550g potatoes
• 350g roast beef
• 6 tbsp sunflower oil
• 2 tsp whole cumin seeds
• 2 tsp whole black mustard seeds
• 2 tbsp whole sesame seeds
• 1/2 tsp cayenne pepper
• salt, to taste
• 1 tbsp lemon juice
• handful coriander leaves, to serve