Cook rice in water as directed on package.
Meanwhile, heat oil in large nonstick skillet over medium heat until hot. Add onion and garlic; cook about 5 minutes or until onion is tender, stirring frequently. Add bell pepper, oregano, salt and pepper; cook about 5 minutes or until bell pepper is crisp-tender, stirring frequently.
Add cooked rice, tomatoes, zucchini and kidney beans; mix well. Bring to a boil. Reduce heat; cover and simmer 5 to 8 minutes or until vegetables are tender. Remove from heat. Sprinkle with cheese. Cover; let stand 1 to 2 minutes or until cheese melts.