01 - Preheat oven to 400°F. Line a baking tray with parchment paper. Spread butternut squash cubes, onion, and garlic on the tray. Drizzle with 1 tablespoon olive oil, sprinkle with salt and pepper, and toss to coat evenly.
02 - Roast the vegetables for 25 minutes until the squash is fork-tender and lightly caramelized.
03 - While vegetables roast, bring a large pot of salted water to a boil. Cook pasta according to package instructions until al dente. Drain and set aside.
04 - 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 1/2 teaspoon pepper. Blend until smooth and creamy. Adjust seasoning as needed.
05 - Return drained pasta to the pot. Pour sauce over pasta and mix thoroughly to coat. Gently heat on low for 2 to 3 minutes, stirring occasionally, until warmed through.
06 - For a crunchy topping, combine panko breadcrumbs with 1 tablespoon olive oil. Sprinkle over pasta in an ovenproof dish and broil for 2 to 3 minutes until golden brown.
07 - Serve hot, garnished with chopped fresh parsley.