Bring a large pot of salter water to a boil.
Pull the kale from the stems and tear into pieces.
Place a large high sided pan over medium heat. Add in the olive oil, butter, red pepper flakes and smashed garlic into the pan. Allow the garlic to cook slowly as the oil and butter heat up.
Once you can smell the garlic, about 1-2 minutes, add in the lemon zest, kale, salt and pepper and toss. Make sure all the kale is coated in the oil/butter. Continue to toss periodically while it begins to soften and wilt - about 5 minutes.
While the kale is wilting, add the pasta in the water and cook until al-dente.
Once cooked, reserve 1 cup of pasta water to the side and add the pasta straight into the pan with the kale.
Turn off the heat and stir it all together. Add in the parmesan, lemon juice, pasta water and mix together.
In a separate pan, cook 2 eggs over easy.
Place the kale pasta on the plate, top with a fried egg (if desired) and another sprinkle of parmesan cheese, salt and pepper.