Add the frozen cauliflower gnocchi to a bowl and microwave*, covered, for 5 minutes. Set aside.
Add the sliced mushrooms and chicken sausages to a large nonstick* skillet over medium-high heat. Cook for 6-8 minutes, stirring occasionally, until both start to brown and crisp around the edges.
Add the garlic and optional pepper sauce. Cook for 30-60 seconds, stirring to fully incorporate.
Add the red wine vinegar, stir everything together, and cook until no liquid remains, about 30-60 seconds. Add the marinara and stir to fully incorporate.
Add the halved tomatoes and cook for 2-3 minutes until they begin to soften before adding the microwaved gnocchi. Turn off the heat and stir everything together until the gnocchi is evenly coated in the sauce.
Grate fresh parmesan reggiano, pecorino, or your choice of cheese on top as you serve. Enjoy!