While it’s cooking, heat a skillet over medium heat and add a swirl of olive oil. When oil is heated (1-2 minutes), add onion and cook about 1-2 minutes, until onion is starting to look translucent. Add corn and sprinkle with salt, pepper, and smoked paprika (if using). Turn heat up to medium-high. Cook, stirring the mixture occasionally, for about 2-3 minutes. Add tomato and lime juice and stir.
Your quinoa should be about done at this point. Add the cooked quinoa to the skillet and stir. Add the cilantro and season to taste with additional salt, pepper and smoked paprika, if desired. Serve lukewarm or chill in fridge. If using feta, wait until salad has slightly (or completely) cooled before stirring it in.
Recipe by In Good Taste at http://ingoodtaste.kitchen/cooking-for-two-quinoa-tomato-and-corn-salad/