Black Pepper Beef Udon

Name: Black Pepper Beef Udon
Prep time: 5 min
Cook time: 10 min
Total time: 15 min
Cuisine: Asian
Ingredients: 200 g or single serve packet of Fresh Udon; 100 grams of Shabu Shabu Beef; 1/2 Onion; 1 tsp Garlic, minced; 1/2 tsp Ginger, minced (optional); 1/4 cup Dark Soy Sauce (or Kicap Manis); 1 tbsp Oyster Sauce; 1 tbsp Tomato paste; 2 tsps Black Pepper (adjust to preference); 1 Cup Water; A handful of Chye Sim (or any leafy greens); Cornstarch slurry of 2 tsps Cornstarch + water