Tunisian Eggplant Salad

• 1 green bell pepper
• 1 garlic clove
• 1 tomato
• 1,100 gr shallow casserole
• 450 gr eggplant
• 120 ml boiling water
• 120 ml olive oil
• 80 ml wine vinegar (red)
• 60 gr crumbled feta cheese
• 3 gr salt