Basque Style Eggplant Casserole

• 6 tomatoes (peeled)
• 5 mushrooms (sliced)
• 2 eggs with (beaten)
• 1 eggplant
• 120 gr swiss cheese (grated)
• 90 ml oil
• 40 gr parmesan cheese (freshly grated)
• 16 ml water
• 8 gr fines herbs
• 1 gr salt