Easy Quiche Made With Yogurt

1 (9 inch) deep dish pie shells or 2 (8 inch) frozen pie crusts, regular 6 eggs , lightly beaten 12 ounces plain yogurt 8 ounces swiss cheese , shredded 4[...]

1 1/4 cups milk 1/2 cup self raising flour 3 medium eggs 1 cup cheddar cheese , grated 1 cup bacon or 1 cup ham , chopped 1 1/2 cups vegetables 1 onion ,[...]