1) In a large skillet cook sweet peppers, onion, garlic in hot oil about 4 minutes or until vegetables are crisp tender. Remove vegetables from skillet with a slotted spoon.
2) Season meat with salt and pepper. Place meat in the skillet. (Add more oil if necessary.) Cook over med-high heat about 4 minutes on each side or until desired doneness. Transfer the meat to a serving platter, reserving the drippings in the skillet. Keep warm.
3) For sauce, carefully add beef broth and oregano to reserved drippings. Bring to boiling. Boil gently, uncovered, over medium heat for 2 to 3 minutes or until broth is reduce to 1/4 cup, scraping up crusty browned bits in pan. Stir in the cooked vegetables and tomatoes. Heat through. Spoon over meat. If desired, serve with hot cooked rice.