Preheat oven to 375°F and spray a 13x9 casserole dish with non-stick oil. Set aside.
In a large skillet over medium heat, add oil and sauté onin until translucent, about 3 minutes.
Add garlic and continue to sauté for another 30 seconds.
Add ground beef, break it apart.
Brown ground meat until no longer pink, drain extra fat if necessary.
Add diced bell pepper, spices, Worcestershire sauce and mix well.
Add broth, tomatoes, rice and 1 ½ cups of cheese. Stir until well combined.
Pour mixture into your baking sheet, top with remaining cheese.
Cover with a. piece of parchment paper then aluminum foil and bake in the center of your oven for about 20-30 minutes.
Remove parchment and foil, and broil for 5 minutes or until top is nicely golden.
Let it rest for 10 minutes before serving.