Preheat the oven to 375°F (190°C).
Cook the pasta according to the package instructions, then drain and set aside.
In a large skillet, heat olive oil over medium heat. Add the sausage, breaking it up with a spoon, and cook until browned.
Add the kale to the skillet and cook until wilted.
Stir in the marinara sauce and let it simmer for a few minutes.
Combine the cooked pasta with the sauce mixture, then transfer to a baking dish.
Sprinkle mozzarella and parmesan cheese on top.
Bake in the preheated oven until the cheese is bubbly and golden, about 15-20 minutes.
Serve warm and enjoy your sausage and kale pasta bake.