Place all ingredients, except for the oregano, thyme, and parsley, into a large bowl in the exact order shown above, and toss with a spatula or large serving spoon until potatoes are fully coated.
Next, heat a large (12-13") sauté pan for about 30 seconds on medium-high heat, then reduce heat to medium, and add sweet potato mixture to the pan, evenly distributing the potatoes across the pan.
Cook for 10 minutes, then add oregano and thyme and cook for another 10 minutes, stirring frequently. Add parsley and cook for a final 2-3 minutes, or until potatoes are tender and golden brown. Remove from heat, garnish with a few sprigs of fresh parsley, and serve immediately.