Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Peel the carrots and parsnips, then slice them into uniform 1-inch rounds or half-moons.
Place the vegetables on the baking sheet and toss with 0.25 tbsp of olive oil, sea salt, and black pepper.
Roast the vegetables for 22-25 minutes, flipping halfway through, until they are tender and slightly caramelized.
While the vegetables roast, cut the tempeh into 1-inch cubes.
In a small mixing bowl, whisk together the maple syrup, tamari, grated fresh ginger, garlic powder, and nutritional yeast until smooth.
Heat the remaining 0.25 tbsp of olive oil in a large non-stick skillet over medium-high heat.
Add the tempeh cubes to the skillet and sauté for 5-7 minutes, turning frequently until all sides are golden brown and crisp.
Reduce the heat to low and pour the maple-tamari glaze over the tempeh.
Stir the tempeh constantly for 1-2 minutes until the glaze thickens into a sticky coating.
Arrange the roasted root vegetables on a plate and top with the glazed tempeh cubes.