Baked Eggs Florentine

• 4 eggs
• 130 gr condensed crm of celery
• 120 ml water chestnuts (chopped)
• 95 gr carrot (shredded)
• 75 gr pkg frz spinach (chopped)
• 60 ml lo fat yogurt (plain)
• 3 gr parmesan cheese (grated)
• 1 gr pepper