Cut the top off the whole green peppers. Clean all the seeds out of the inside and rinse with water.
Put the peppers upside down to drain the water out.
Cook rice according to package directions
Brown ground beef . While browning add chopped onion, chopped bell pepper and minced garlic . Cook till onion and pepper are soft.
After beef is fully cooked, drain grease out then add diced tomatoes, cooked rice and 2 cups shredded cheese.
Put hollowed out peppers in a baking dish and fill with beef/rice mixture. I usually have a little filling left over so I put it in the bottom of the baking dish around the peppers. Cover with foil and cook 425* for 30 - 40 min until peppers are soft. (I like mine with a little bit of crunch to them so I cook them for about 30 minutes.)
After 30 - 40 minutes uncover peppers and add remaining cup of cheese. Cook for additional 5 min or until cheese is melted.