Preheat your oven to 400ºF (200ºC). Spread the diced sweet potatoes and halved Brussels sprouts apart on the sheet pan.
Drizzle everything with ¼ cup olive oil, sprinkle with seasoning, then add salt and pepper to taste. Roast Brussels sprouts and sweet potato on the bottom rack until softened and deeply browned, approx. 20–25 minutes.
In the meantime, make the dressing: In a mason jar, combine ¼ cup olive oil, vinegar, garlic, Italian seasoning, pepper, and parmesan. Close the jar and shake vigorously to emulsify. You can also mix the vinaigrette with a fork.
Transfer the roasted sweet potatoes and Brussels sprouts in a large salad bowl. Add chopped kale and pecans. Drizzle the vinaigrette on top and sprinkle parmesan shavings. Toss to combine and serve the roasted sweet potato and Brussels sprouts salad immediately or chilled at room temperature. Enjoy!
