Heat the oven to 450°F. Toss sweet potato cubes with powdered seasonings and enough oil to coat. Spread in a suitable ovenproof roasting dish.
Roast for about 55–65 minutes, turning several times, until tender with browned edges. Smaller cubes may finish sooner.
During the final 15 minutes, soften minced garlic and onion in the remaining teaspoon oil over moderate heat, stirring frequently to prevent burning. Fold into the roasted potatoes.
This is a vegetable side dish without eggs, distinct from the egg-and-sweet-potato breakfast hash already on the site.Inspired by Joy Shull.Estimated nutrition is for one of 6 equal portions.Storage: Refrigerate perishable portions in shallow, covered containers within 2 hours, or within 1 hour above 90°F. Keep the refrigerator at 40°F or below and use cooked leftovers within 3–4 days. If reheating cooked leftovers, heat them to 165°F throughout.