This Creamy Boursin Tomato Spinach Pasta Casserole is a simple baked pasta dish that delivers big flavor with minimal effort. Roasted tomatoes, mushrooms, garlic, and Boursin cheese come together to create a rich, creamy sauce that coats every bite of pasta. It’s an easy, comforting meal that’s perfect for busy weeknights or when you want something warm and satisfying without spending hours in the kitchen.