Preheat oven to 400°F. Lightly grease a 3 qt. casserole dish and set aside.

Heat olive oil in a large skillet over medium heat. Add onion, garlic, and Italian sausage. Season with salt and black pepper, to taste. Cook, stirring occasionally and breaking up the sausage with a wooden spoon, until the vegetables are tender, and the sausage is browned, 5-6 minutes. 

Add the power greens and continue cooking until they wilt, 1-2 minutes.

Meanwhile, prepare gnocchi according to package directions in salted boiling water. 

Add cream cheese, heavy cream, and milk to the sausage mixture and continue cooking until the cream sauce is bubbly and the cream cheese is nicely melted, another 2-3 minutes.

When gnocchi has finished cooking, drain and add to the sausage mixture. Stir to coat. 

Transfer the gnocchi and sausage mixture into prepared casserole dish and top with fontina cheese. Bake 15-20 minutes or until everything is hot and bubbly and the cheese is melted and is light golden-brown. 

Top with fresh parsley and enjoy!