Cook fettuccine according to package directions; drain and keep warm.
Heat large nonstick skillet over medium heat until hot. Place beef steaks in skillet; cook 11 to 13 minutes for medium rare (145°F) doneness, turning occasionally. (Do not overcook.) Remove from skillet; keep warm.
Combine pasta sauce and oregano in same skillet; heat until hot. Return steaks to skillet; turn to coat with sauce. Place steaks on fettuccine; spoon sauce over all. Sprinkle steaks with cheese, allowing cheese to melt. Sprinkle with parsley.
Nutrition information per serving: 474 Calories; 99.9 kcal Calories from fat; 11.1 g Total Fat; 3.7 g Saturated Fat; 0.2 g Trans Fat; 0.3 g Polyunsaturated Fat; 2.3 g Monounsaturated Fat; 71 mg Cholesterol; 766 mg Sodium; 54 g Total Carbohydrate; 10.1 g Dietary Fiber; 37 g Protein; 6.2 mg Iron; 332 mg Potassium; 4.5 mg Niacin; 0.4 mg Vitamin B6; 2.8 mcg Vitamin B12; 5.9 mg Zinc; 33.6 mcg Selenium; 90.1 mg Choline;