Mediterranean roasted lamb

Ingredients

• 1/4 cup olive oil
• 1 tsp balsamic or red wine vinegar
• 4 lean lamb fillets (trimmed of all excess fat)
• 2 tsp black peppercorns
• 1 tsp cumin seeds
• 250 g shallots (unpeeled)
• 2 large eggplants
• 2 garlic cloves (crushed)
• 400 g cherry tomatoes (pricked)
• 1 tbsp cilantro (chopped)