Preheat your oven to 375°F (190°C). Bring a pot of salted water to a boil over high heat. Once the water is boiling, add lasagna noodles and cook for time indicated on the package. Drain the pasta, rinse and transfer to a bowl.
In a skillet, heat a little bit of water or extra virgin olive oil over medium heat. Add the chopped kale and sauté for a few minutes until it wilts and becomes tender. Remove it from the heat and set it aside.
In a mixing bowl, combine the part-skim ricotta, egg, Parmesan cheese, minced garlic cloves, Italian seasoning, sautéed kale and season with salt and black pepper to taste. Mix everything together until well combined.
Lay out the cooked lasagna noodles on a clean surface or parchment paper. Spread a generous spoonful of the ricotta mixture evenly over each lasagna noodle. Carefully roll up each lasagna noodle starting from one end to the other.
In a baking dish, spread a thin layer of homemade tomato sauce on the bottom to prevent sticking. Place each lasagna roll-up seam-side down into the baking dish.
Pour the remaining tomato sauce over the top of the roll-ups. Sprinkle fresh mozzarella cheese evenly over the top of the roll-ups.
Cover the baking dish with foil and bake in the preheated oven for about 30-40 minutes or until the cheese is bubbly and the roll-ups are heated through.
If desired, garnish with fresh basil leaves before serving.