1Preheat your oven to 400°F (200°C).
In a large mixing bowl, combine the chopped onion, diced potato, diced jicama, and sliced carrot.
Drizzle the olive oil over the vegetables and toss to coat them evenly.
Sprinkle the rosemary, thyme, and salt over the vegetables and mix well to ensure even distribution of the seasonings.
Spread the vegetables in a single layer on a baking sheet.
Roast in the preheated oven for 25-30 minutes, or until the vegetables are tender and golden brown, stirring halfway through the cooking time.
Remove from the oven and serve warm.