Step 1

Cook the kale: Heat 1 tablespoon olive oil, and the red pepper flakes over in a high-sided skillet over medium heat. Once the oil is hot, add the kale, garlic, and salt and saute until the kale is tender. Remove the kale from the skillet and set aside.

Step 2

Cook the pasta: Add the tomato sauce and water to the skillet and bring to a simmer. Add the pasta and cook for the time recommended on the package, or until the pasta is al dente, stirring frequently to ensure the pasta cooks evenly. Stir the cooked kale into the sauce to warm and take the skillet off the heat.

Step 3

Assemble and serve: Sprinkle cheese over the top, if using, and serve.