Preheat oven to 375°F. Line a baking sheet with parchment paper.

Drizzle cut side of squash with evoo, and season with salt and pepper. Place cut side down on prepared baking pan. Roast in a 375°F oven for 30 to 40 minutes, or until a knife can be inserted in the squash with no resistance.

With a fork, gently scrape the flesh into a mixing bowl. The strands are fragile, so go gently.

Lightly coat a large sauté pan with evoo, and sauté onion over medium high heat for 7 to 10 minutes, until brown and caramelized. Add garlic and crushed red pepper. Continue cooking for an additional minute or so until garlic has softened.

Add kale and ⅓ cup water. Cook for 3 to 5 minutes, tossing mixture occasionally until kale is wilted, and the leaves have softened.

Add spaghetti squash, raisins, ricotta (if using), and toasted pumpkin seeds. Gently toss and season with salt and pepper. Serve with chicken if not using cheese, fish, or as a light entrée. 

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