In a pot add butter and let it get melty. Then add in the lemon zest and salt & pepper.
Let that saute for about 3 minutes.
Next add in lemon juice and give that a stir.
Then pour in the heavy cream and more salt & pepper.
Bring the pot to a boil and once it comes to a boil lower it to a simmer. Simmer for 4-7 minutes or until it thickens up a bit.
Then add in the pecorino romano and chopped garlic.
Whisk that together until everything is incorporated.
Bring the pot back to a boil, lower it to a simmer, and let that simmer for 5-7 mins
Add in the frozen broccoli and bring the pot back to a boil.
Once it comes to a boil, lower it to a simmer, and let that simmer for about 3-5 minutes or until the broccoli is soft.
Boil the tortellini in salted water for 2 minutes.
Once the tortellini is halfway cooked add it to the alfredo sauce letting a little bit of the pasta water drip in.
Stir everything together and let the tortellini finish cooking in the sauce for 2-3 minutes.
Garnish with more grated pecorino romano and enjoy! The sauce will thicken as it stands.
Allow the dish to set up for 5 minutes before serving.