Preheat the oven to 425 degrees F. Peel and cube the sweet potatoes into ½-inch pieces.
In a large Tupperware container or gallon-sized ziplock bag, add the olive oil, salt, pepper, chili powder, cumin, paprika, and garlic powder. Add cubed sweet potatoes and shake until evenly coated.
Spread sweet potatoes in an even layer on the sheet pan, paying attention so they don't overlap. Cook for fifteen minutes, then pull out the pan and rearrange sweet potatoes so they will cook evenly.
After 20 minutes, combine the chicken apple sausage and maple syrup and mix in with the sweet potatoes on the baking sheet. Bake for 10-15 minutes until sausage is browned and lightly caramelized.
Notes
You can easily change the flavor profile by subbing sage, rosemary, and thyme for the cumin, chili powder, and paprika. Dried varieties measure the same: half a teaspoon. If you are using fresh herbs, just double the amount and chop them finely.