Preheat oven to 180°dice bacon and fry in a large skillet for 10 minutes or until slightly crispy. Remove from heat.
In a large bowl, whisk together eggs and cream until well combined. Add the spring onion, salt, bacon and half the cheese and mix through.
Pour into a greased baking pan. Top with the remaining cheese, cracked pepper and jalapeños.
Bake for 35 minutes. Serve hot, topped with a dollop of sour cream.