Quiche Lorraine Ala Katherine

• 9 quiche pastry
• 3 eggs (beaten)
• 150 gr swiss cheese (grated)
• 90 gr onion (chopped)
• 20 gr parmesan cheese (grated)
• 7 gr rendered bacon fat use drippings from cooking bacon
• 1 gr salt
• 1 gr pepper
• 6 slices bacon crumbled (sliced cooked)