Ingredients

• 1 cucumber (150 g)
• Salt water: 1 tablespoon salt and 1 cup water
• 1/2 teaspoon cooking oil
• 30 g beef (round)
• 1 dried shiitake mushroom (5 g)
• 1 egg
• Seasoning for beef and mushroom: 2 teaspoons soy sauce, 1 teaspoon sugar, 1 teaspoon minced green onion, 1/2 teaspoon minced garlic, 1 teaspoon sesame oil, 1 teaspoon sesame salt, a little ground black pepper
• Sweet-sour dressing: 2 tablespoons vinegar, 2 tablespoons water, 2 tablespoons sugar, 1/2 teaspoon salt

Instructions

1. Wash the cucumber, halve it lengthwise, and slice it diagonally to about 0.3 cm thick. Salt it lightly, remove the moisture, and prepare the beaten egg into yellow and white omelet sheets.
2. Stir-fry the seasoned beef and sliced mushroom in a pan, then let them cool.
3. Briefly stir-fry the salted cucumber in hot oil over high heat and let it cool.
4. Fill the slits in the cucumber with alternating strips of yellow omelet, white omelet, and the stir-fried beef and mushroom.
5. Plate and pour the sweet-sour dressing over the top just before serving.