Preheat oven to 425°F.
Place the butternut squash halves, shallots, and garlic on a baking sheet. Drizzle with olive oil and season with salt, pepper, garlic powder, and smoked paprika.
Bake for about 30 minutes.
Cook the pasta according to package instructions.
In a blender or Nutribullet, blend the roasted butternut squash, shallots, and garlic. Add the ricotta cheese and reserved pasta water to reach the desired consistency.
Add the Trader Joe's Bomba sauce (optional), balsamic vinegar, and Italian seasoning. Blend until smooth.
Drain the pasta and place it over spinach in a pot. Add the creamy butternut squash sauce and toss to combine.
Top with Parmesan cheese and red chili flakes.
