Cook pasta per package instructions, 6-10 minutes. Drain and cover to keep warm. Bring a skillet sprayed with nonstick spray to medium heat. Add tomatoes, onion, garlic, salt, and pepper. Cook and stir until onion has softened, about 5 minutes.
Add spinach and cook and stir until wilted. Add all other ingredients except cooked pasta, breaking the cheese wedges into pieces. Cook and stir until cheese has melted and mixed with sauce, about 2 minutes. Add pasta and cook and stir until hot and thoroughly coated, about 1 minute. Enjoy!