Cut beef Steak lengthwise in half, then crosswise into 1/8 to 1/4-inch thick strips. Combine beef, pepper and 1/2 teaspoon seasoning from 1 ramen noodle package. Reserve remaining seasoning from packet for broth; discard second seasoning packet.
Heat 1 teaspoon oil in large nonstick skillet over medium-high heat until hot. Stir-fry half of beef 1 to 2 minutes or until outside surface of beef is no longer pink. Remove from skillet. Repeat with remaining 1 teaspoon oil and beef. Remove from skillet; keep warm.
Combine water, onion, garlic, ginger and reserved seasoning from packet in same skillet. Bring to a boil; reduce heat and simmer 2 minutes. Add noodles. Bring liquid to a boil; reduce heat and cook according to package directions or until noodles are al dente, about 3 minutes. Stir in beef and miso, if desired. Serve immediately with Toppings and Garnishes, as desired.
Nutrition information per serving: 360 Calories; 99 kcal Calories from fat; 11 g Total Fat; 4 g Saturated Fat; 4 g Monounsaturated Fat; 70 mg Cholesterol; 744 mg Sodium; 32 g Total Carbohydrate; 1.7 g Dietary Fiber; 31 g Protein; 3.7 mg Iron; 12.6 mg Niacin; 0.7 mg Vitamin B6; 1.5 mcg Vitamin B12; 5.3 mg Zinc; 40 mcg Selenium; 104.4 mg Choline;