Preheat your oven to 375.
Chop your potato into cubes and toss with the olive oil, garlic, salt and pepper. Bake for about 35-40 minutes, until fork tender.
While your potatoes cook, prep your brown rice as instructed on package. I like to stir my rice in a pot with 1 tsp olive oil for 1-2 minutes on medium heat before adding in the water. I then pour in two cups of water for 1 cup of rice, cover the pot, bring the water a boil, and reduce the heat to let it simmer for about 20-25 minutes. Season with salt after letting it sit for 10 minutes.
Once your potatoes and rice are ready, pour into 4 bowls over a bed of greens with all of your toppings. You can prep these bowls ahead of time, and keep the dressing on the side if not eating immediately.
For the sauce, whisk together all ingredients in a small bowl until smooth. For a spicier sauce, add in an additional 1/2-1 tbsp of harissa. Depending on the brand, spiciness with vary.