Crustless Zucchini Quiche

• 350 de grees
• 9 fluted pie (plate)
• 3 eggs
• 1 1/2 garlic (cloves minced)
• 1 onion (chopped)
• 375 gr zucchini (chopped fresh)
• 300 gr swiss cheese (grated)
• 22 gr butter
• 16 ml dry sherry
• 2 gr oregano