Preheat the oven to 400°F.
In a 13x9-inch baking pan, stir together the sun-dried tomatoes in oil with the cherry tomatoes. Push the tomatoes to the side and place both rounds of Boursin cheese in the center of the pan.
Bake until the cheese has softened and the tomatoes are roasted, about 20 minutes.
While the cheese is baking, bring a large pot of salted water to a boil. Add the pasta and cook until al dente. Drain the pasta and set it aside.
Remove the baking pan from the oven and immediately stir the cheese together with the tomatoes and the spinach. (The cheese must still be hot to wilt the spinach.)
Stir in the drained pasta until well-combined. Top with grated Parmesan cheese and serve.
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