Bring a large pot of salted water to a boil and cook the spaghetti according to package directions until al dente.
While the pasta cooks, heat olive oil in a large skillet over medium heat and cook pancetta until crispy, about 5 minutes.
Add chopped kale to the skillet and sauté until wilted, about 3 minutes.
In a bowl, whisk together eggs, Parmesan cheese, and black pepper until combined.
Drain the spaghetti, reserving 1/2 cup of pasta water. Immediately toss hot pasta with egg mixture, adding reserved pasta water a little at a time to create a creamy sauce.
Mix in cooked pancetta and kale. Serve immediately with extra Parmesan if desired.
Notes
This carbonara recipe adds a healthy twist with kale, making it perfect for a nutritious comfort meal.