1. In a large saucepan over high heat, bring the broth to a boil. Stir in the quinoa, reduce heat to medium-high, and continue boiling, uncovered, for 15 minutes. 2. Stir in the corn and salsa, then return to a simmer. Remove the pan from the heat and stir in the avocado. Season with salt and pepper, and stir in the cilantro. Ladle into large bowls, accompanied by the lime wedges.