Ingredients

• 8 ounces whole-grain medium shell pasta
• 4 plum tomatoes, halved lengthwise
• 2 tablespoons whole wheat breadcrumbs
• 1 teaspoon plus 1 tablespoon olive oil
• 1/2 teaspoon Italian seasoning
• 1 tablespoon all-purpose flour
• 1 clove garlic, minced
• 1/2 cup canned pumpkin puree
• One 12-ounce can nonfat evaporated milk
• 1/2 cup reduced-fat shredded Cheddar
• 1/2 cup part-skim mozzarella
• 1/4 cup grated Parmesan
• Kosher salt and freshly ground black pepper
• 4 cups baby spinach (about 3 ounces)
• 2 cups grapes

Instructions

1. Preheat the broiler to high.
2. Bring a large pot of water to a boil. Add the shells and cook according to package directions. Drain, reserving some of the pasta water and set aside.
3. Meanwhile, arrange the tomatoes, cut-side up, on baking sheet and broil until wrinkled and soft, 4 to 5 minutes. Combine the breadcrumbs, 1 teaspoon of the oil and the Italian seasoning. Sprinkle over the tomatoes. Continue to broil until golden brown, about 1 minute.
4. Heat the remaining 1 tablespoon of oil in a medium saucepan over medium heat. Add the flour and garlic, stirring until the flour turns light brown, about 1 minute. Add the pumpkin puree and evaporated milk, bring to a simmer, stirring, and cook until sauce just begins to bubble and thickens, 4 to 5 minutes. Stir in the Cheddar, mozzarella and Parmesan, 1/2 teaspoon salt and some pepper. Stir until melted, about 1 minute.
5. Add the spinach and stir until wilted, about 1 minute. Add the cooked pasta and stir until coated, thin out with the reserved pasta water as desired. Divide the mac n cheese, tomatoes and grapes among four plates.