Ingredients

• Vegetable oil cooking spray
• 6 ounces sugar snap peas, strings removed, cut into 1/2-inch pieces
• 3 plum tomatoes, seeded, cut into 1/2-inch pieces
• 2 large yellow bell peppers, cored, seeded, cut into 1/2-inch pieces
• 1 large orange bell pepper, cored, seeded, cut into 1/2-inch pieces
• 1 tablespoon extra-virgin olive oil
• 1 teaspoon minced fresh rosemary
• 1 teaspoon kosher salt
• 1/2 teaspoon freshly ground black pepper
• 1 pound cavatappi or macaroni pasta
• 2/3 cup buttermilk
• 2/3 cup safflower oil
• 2/3 cup sour cream
• 2 lemons, zested
• 1/4 cup fresh lemon juice
• 1/3 cup chopped fresh chives
• 1/3 cup chopped fresh mint
• 1/4 cup chopped fresh Italian parsley
• 3/4 teaspoon kosher salt
• 1/4 teaspoon freshly ground black pepper

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Instructions

1. For the vegetables: Place an oven rack in the center of the oven and preheat to 375 degrees F. Coat a large rimmed baking sheet with vegetable oil spray. Combine all the vegetables in a large bowl. Drizzle with the olive oil and sprinkle with rosemary, salt and pepper. Toss to coat. Spread out the vegetables in a single layer on the prepared sheet. Roast until tender, 25 to 30 minutes.
2. Bring a large pot of salted water to a boil over high heat. Add the pasta and cook until tender but still firm to the bite, stirring occasionally, 8 to 10 minutes. Drain and place in a large serving bowl.
3. For the dressing: In a medium bowl, whisk together the buttermilk, safflower oil, sour cream, lemon zest, lemon juice, chives, mint, parsley, salt and pepper until smooth.
4. Add the roasted vegetables and dressing to the cooked pasta. Toss until all ingredients are coated and serve.