Preheat the oven to 350 F (175 C)
Fry the bacon in butter on medium high heat until crispy Add the spinach and stir until wilted Remove the pan from the heat and set aside.
Whisk the eggs and cream together and pour into a greased baking dish (9 x 9 inches) or in individual ramekins.
Add the bacon, spinach and cheese on top and place in the middle of the oven Bake for 25-30 minutes or until set in the middle and golden brown on top