Preheat oven to 350 degrees F. Spray a muffin pan with cooking spray.
In a large skillet, heat olive oil over medium-high heat.
Add onion and bell pepper, and cook for about 5-7 minutes, until softened.
Add cumin, chili powder, and salt, and cook another minute.
Remove from heat and add to a bowl with the cilantro, salsa, ground chicken, quinoa, egg, and ½ cup of the shredded cheese.
Mix well to combine.
Fill muffin pan with mixture, filling each one full. Top each meatloaf muffin with another tablespoon of cheese.
Bake in preheated oven for 30 minutes, or until cheese is melted and chicken is cooked through.
Let sit for about 5 minutes then remove from muffin pan.
Serve topped with additional chopped cilantro and enjoy!