Caramelized Onion without hamburger

1 pastry crust 2 cups fresh spinach , washed and dried 3/4 cup crumbled feta cheese 2 onions , caramelized 4 eggs 1/2 cup creme fraiche (or sour cream) 3/4[...]

2 tablespoons olive oil 2 medium onions , sliced 2 red apples , cut into small pieces (such as Braeburn or Gala) kosher salt and black pepper 2 sheets frozen[...]