Heat the oil in a skillet over medium heat. Add the onion and jalapeño and cook for 2-3 minutes, or until slightly tender. Rinse the quinoa and add to the skillet with the black beans, taco seasoning and broth. Stir and bring to a boil. Cover, lower the heat and simmer for 20 minutes.*
Meanwhile, add all of the dressing ingredients to a food processor or blender and blend until smooth. Taste and adjust seasonings as needed. Set aside.
Heat the tortillas and assemble the tacos. Layer each tortilla with shredded cabbage, quinoa/beans, avocado, radish slices & pickled onions. Drizzle with dressing and sprinkle on some extra cilantro. Serve with lime wedges on the side.
*After 20 minutes, check to make sure the quinoa is cooked. If it is still crunchy and there isn't any liquid left, add a splash of water and simmer for a couple more minutes.
Calories: 302kcal, Carbohydrates: 36g, Protein: 8g, Fat: 15g, Saturated Fat: 3g, Polyunsaturated Fat: 3g, Monounsaturated Fat: 9g, Trans Fat: 0.01g, Sodium: 402mg, Potassium: 463mg, Fiber: 8g, Sugar: 4g, Iron: 3mg