Preheat oven to 425 degrees and spray a baking sheet with cooking spray. Place the cubed sweet potato, diced onion and bell pepper into a large mixing bowl.
Drizzle the olive oil over the vegetables and toss until each piece is coated in oil. Season the veggies evenly with salt and toss to coat once again. Transfer the vegetables to the prepared baking sheet and move them into a single even layer.
Bake 40–45 minutes, turning several times during cooking. Remove from oven and sprinkle with pepper and fresh parsley. Serve nice and hot. Enjoy!
Notes
This makes enough to fill an entire cookie sheet. You may need a second sheet if you decide to double up on the recipe.