Bring 2 cups of water (or broth) to a boil in a saucepan. Stir in quinoa, cover and reduce heat to low. Simmer for 15-20 minutes or until all liquid has evaporated. Remove from heat and fluff with a fork.

Combine quinoa, corn, black beans, green pepper, tomatoes, red onion, and cilantro. Add cumin, chili powder, olive oil, salt and pepper. Stir to combine. Serve warm or cold.