Feta-stuffed meatballs

Ingredients

• 750 grams lamb mince
• 1/3 cup packaged dried breadcrumbs
• 1 egg, lightly beaten
• 1 clove garlic, crushed
• 2 teaspoons ground cumin
• 100 grams feta, cut into 20 pieces
• 2 tablespoons vegetable or olive oil
• 1 cup couscous
• 2 medium tomatoes, finely chopped
• 1 small red onion, finely chopped
• 1/3 cup coarsely chopped mint
• 8 pita pockets, split to open pocket, to serve