In a large skillet, heat the olive oil over medium heat. Add the diced onion and bell pepper, sauté for about 3-4 minutes until they start to soften.
Add the minced garlic and cook for another minute until fragrant.
Increase the heat to medium-high and add the diced chicken to the skillet. Season with cumin, smoked paprika, chili powder, salt, and pepper. Cook for about 5-7 minutes, stirring occasionally, until the chicken is cooked through.
Stir in the rinsed quinoa, black beans, corn, and chicken broth. Bring to a boil.
Once boiling, reduce the heat to low, cover the skillet, and let simmer for 15-20 minutes, or until the quinoa is cooked and has absorbed most of the liquid.
Remove from heat and let it sit for a few minutes before fluffing with a fork.
Garnish with sliced avocado, fresh cilantro, and serve with lime wedges on the side.