Preheat oven to 375°F.
Cut tops off peppers, remove seeds and membranes.
Heat olive oil in large skillet over medium heat.
Sauté onions until soft (5 minutes).
Add garlic, cook 1 minute.
Add beef, cook until browned (8 minutes).
Stir in rice, tomatoes, paste, and seasonings.
Fill peppers with mixture.
Top with cheese.
Bake 30-35 minutes until peppers are tender and cheese is golden.
