Cook and stir beef, onion, and garlic in 25 cm skillet over medium heat until beef is light brown. Drain; stir in tomatoes, jalapeno pepper, salt and pepper. Break up tomatoes with fork. Heat to boiling. Reduce heat; simmer uncovered, until most of the liquid is evaporated, about 10 minutes. Cut papayas lengthwise into halves and remove seeds. Place aobut one third cup beef mixture in each papaya half. Sprinkle with cheese. Arrange in shallow roasting pan. Pour very hot water into pan to within 3 cm of tops of papaya halves. Bake, uncovered, at 350 degrees until papayas are very tender and hot, about 30 minutes. ** Recipe from Betty Crocker Regional and International Recipes.