1. Preheat oven to 350 degrees. Place squash on a parchment-lined baking sheet. Drizzle with 1 1/2 tablespoons olive oil, and sprinkle with a pinch of sea salt and pepper; toss well. Roast until golden brown, tossing halfway through, about 45 minutes.

2. Meanwhile, place shallots on a parchment-lined baking sheet, and drizzle with remaining 1 1/2 tablespoons olive oil, and sprinkle with a pinch of salt and pepper. Roast until brown, tossing halfway through, about 30 minutes.

3. In a large salad bowl, combine lemon juice, flaxseed oil, 1/2 teaspoon salt, and a pinch of pepper. Cut 2 inches off bottom of kale, and slice leaves crosswise into 3/4-inch ribbons (you should have 12 cups loosely packed kale); add to salad bowl. Toss kale with dressing, squeezing until leaves are soft. Let stand for at least 30 minutes.

4. Add vegetables, cheese, and nuts to kale. Toss well to combine.