Preheat & Prep: Preheat oven to 400°F (200°C). In a baking dish, add cherry tomatoes, minced garlic, olive oil, salt, and pepper.
Add the Boursin: Place the Boursin cheese block in the center of the dish, nestled among the tomatoes.
Bake to Perfection: Bake uncovered for 20-25 minutes, until the tomatoes are blistered and the cheese is melted.
Cook the Tortellini: While the Boursin bakes, cook spinach tortellini according to package instructions. Drain and set aside.
Mash & Mix: Once the baking dish is out of the oven, use a spoon to mash the roasted tomatoes and mix the melty Boursin into a creamy sauce.
Combine & Serve: Toss in the cooked tortellini, ¼ cup reserved pasta water, and fresh spinach, stirring until everything is well-coated. The spinach will wilt from the heat.
Garnish & Enjoy: Top with fresh basil, chives, and extra Parmesan cheese if desired.