1. Cook quinoa according to directions. Set aside to let cool completely.
2. Combine sour cream, lime juice, cumin and salt together in a mixing bowl, blend using a hand blender. Stir in chopped cilantro and taste for seasoning. Set aside.
3. Add oil to a sauce pot and add onion. Cook onion until translucent. Add chili powder and cumin; cooke for another minute or so, season with salt.
4. Add the cooked onion mixture, black beans, corn, diced tomato, diced bell pepper and jalapeños to cooked quinoa. Toss well to combine. Add chopped cilantro and lime juice. Toss well to combine.