INSTRUCTIONS
1. Preheat an oven to 375°F.
2. In a 10-inch oven-safe fry pan over medium heat, melt the 3 Tbs. butter. Add the flour and cook, stirring frequently, about 3 minutes. Whisk in the milk and cook, stirring frequently, until thickened, about 5 minutes. Whisk in the tomato paste and thyme. Add the cheese and stir until melted. Season with salt and pepper.
3. In a small bowl, stir together the bread crumbs, the 2 Tbs. melted butter and the parsley, and season with salt and pepper.
4. In a large bowl, combine the pasta and the cheese sauce, then return the mixture to the pan. Top with the buttered bread crumbs. Bake until the topping is golden and crispy, 35 to 40 minutes. Let stand for 10 minutes before serving.