Preheat oven to 400°F Heat olive oil in large skillet and then add cumin, garlic and onion; saute until tender. Mix ground burger, corn, spices and 3/4 cup water in; cook on medium heat 5 minutes or until heated through, stirring frequently. If mixture seems dry and sticks to skillet, you can add more water, up to 1/2 cup. Remove from heat. Add prepared rice and 1/2 cup of the cheese and mix thoroughly.
Spoon mixture evenly into pepper halves and place in 13x9-inch pan. Pour 1/2 cup water into pan (this will ensure that the peppers are tenderly cooked).
Cover with foil and bake for 30 minutes.
Uncover. Sprinkle with remaining 1/2 cup cheese. Bake an additional 5 minutes or until cheese is evenly melted.