Pre-heat a large non-stick skillet to medium heat and add olive oil.
Add ground chicken to the pan and brown. Break up the meat into small, even crumbles using a meat masher or spatula. Cook until there is no visible pink, about 5-7 minutes, stirring occasionally.
Remove meat from pan and set aside. Drain excess liquid from the pan if needed.
Add onion and bell peppers to the pan. Cook until softened, about 4-5 minutes, stirring occasionally. Cook until onions are translucent and peppers are soft.
Add garlic and stir. Cook until just fragrant, stirring frequently. This should take 1-2 minutes.
Add back your cooked chicken with the seasoning, quinoa, marinara sauce, and chicken broth. Stir and cover.
Cook covered for 2-3 minutes or until bubbling. Then, reduce heat to medium-low and cook covered, for about 25-30 minutes. Stir every 5-10 minutes or so to prevent burning or sticking.
When quinoa is cooked through and most liquid has been absorbed, turn off the heat and top with cheese. Cover for 1-2 minutes or until cheese is melted. Add fresh basil, serve, and enjoy!