Preheat the oven at 400 degrees.
First, in one bowl mix eggs, cream, salt, pepper, and Parmesan cheese. Set aside.
Next, in a large pan (oven safe) on medium high heat place 2 tablespoons of extra virgin olive oil, butter, and add the sausage.
Now, break up sausage and spread all over the pan. Let it cook without touching for 2 minutes.
Now, mix sausage and cook for another 2 minutes then push to the side of the pan.
Next, add the broccoli rabe, garlic, red pepper flakes, a pinch of salt and pepper. Cook for 3 minutes stiring occasionally.
Now, mix all the sausage and broccoli rabe together and spread evenly in the pan.
Turn down heat to medium low and pour the egg mixture into the pan. Do not mix and let the egg set for a minute.
Next, place pan in the oven for 20 minutes.
Finally, gently slide the frittata on a cutting board and slice and enjoy.
