Stir in the quinoa, return to a boil, then reduce the heat to low.
Cover and cook for 10–12 minutes, or until the water is fully absorbed and the quinoa “tails” unfurl.
Remove from heat, fluff the quinoa with a fork, cover again, and let sit for 10 minutes.
Combine Ingredients:
While the quinoa is cooling, combine the corn, black beans, jalapeño peppers, salsa, olive oil, lemon or lime juice, cumin, garlic powder, onion powder, red pepper flakes, oregano, salt, and pepper in a large mixing bowl.
Mix and Serve:
Add the cooked quinoa to the bowl with the other ingredients.
Mix thoroughly to combine.
Serve immediately or refrigerate to let the flavors meld together.
Add Optional Toppings:
If desired, top with diced bell pepper, red onion, chopped cilantro, and diced tomatoes before serving.