2Bring a large pot of lightly salted water to a boil. Add gnocchi, and cook until tender, 5 to 8 minutes.
3Meanwhile, crumble sausage into a skillet over medium-high heat. Cook and stir until evenly browned. Drain grease, and stir in spaghetti sauce. Remove from heat, and carefully combine with cooked gnocchi and half of the mozzarella cheese. Transfer to a casserole dish. Sprinkle remaining cheese on top.