Preheat oven to 400°F. Toss diced sweet potatoes in olive oil, garlic powder, onion powder, paprika, salt and pepper. Add to a parchment lined rimmed baking sheet.
Roast cubed sweet potato for 15-20 minutes, flipping halfway through. Remove and set aside to cool.
To a large serving bowl, add mixed greens, roasted sweet potatoes, sliced apples, crumbled goat cheese,chopped pecans and dates.
Toss in Maple Vinaigrette and serve. If prepping in advance: wait to toss in dressing until ready to serve.