Preheat your oven to 350°F. Wash your bell peppers and cut the tops off. Scoop out the insides and set your bell peppers aside.

Cook the ground beef over medium-high heat until it is cooked all the way through. Remove the excess grease from the pan.

Add in the taco seasoning, rice, tomatoes, and about half of the cheese. Stir to combine.

Fill your bell peppers with the meat mixture and top with the remaining cheese. (If the peppers won't stand up on their own, cut a small sliver off the bottom to level it.)

Cook your stuffed bell peppers in the oven for 25-30 minutes, or until the cheese is bubbly.

Remove from oven and let rest 5 minutes before serving for the filling to finish setting up.