Pre-heat oven to 400 degrees.
Using a large cast iron skillet, brown your ground meat and red onions together.
Once your meat has cooked, drain any excess oil.
Stir in remaining ingredients, except for 1/2c of shredded cheese.
Cover the skillet with aluminum foil or oven safe cover.
Bake for 35 minutes or until the rice has completely cooked.
Remove foil and top with remaining cheese.
Bake for an additional 10 minutes.
Serve hot, with garnishes.