01 - Set oven to 400°F and line a baking tray with parchment paper.
02 - Arrange butternut squash cubes, onion, and garlic on the tray. Drizzle with 1 tablespoon olive oil, season with a pinch of salt and pepper, and toss to coat evenly.
03 - Place tray in oven and roast for 25 minutes, or until squash is tender and caramelized.
04 - Boil a large pot of salted water. Add pasta and cook according to package instructions until al dente. Drain and set aside.
05 - Transfer roasted vegetables to a blender. Add plant-based milk, nutritional yeast, 1 tablespoon olive oil, lemon juice, Dijon mustard, smoked paprika, turmeric if using, 1 teaspoon salt, and ½ teaspoon pepper. Blend until smooth and creamy, adjusting seasoning as needed.
06 - Return drained pasta to the pot. Pour in the blended sauce and stir thoroughly to coat evenly. Gently warm over low heat for 2 to 3 minutes.
07 - If desired, mix panko breadcrumbs with 1 tablespoon olive oil. Sprinkle over pasta in an ovenproof dish and broil for 2 to 3 minutes until golden and crisp.
08 - Dish out portions, garnish with chopped fresh parsley, and serve hot.