Southwestern Pasta with Spicy Pumpkin Seeds

Preheat oven to 400 degrees. On a rimmed baking sheet, combine tomatoes, scallions, garlic, oil, pepper flakes, 2 teaspoons salt, and 1/4 teaspoon pepper. Toss to coat. Bake until softened, tossing halfway through, 30 to 40 minutes

Meanwhile, cook pasta. Drain; return to pot. Toss with tomato mixture and cheese; season with salt and pepper. Divide among bowls; sprinkle with pumpkin seeds.