Yamasa USA - Japanese Style Roast Beef

Ingredients

• 2 pounds bottom round roast
• 1 ½ Teaspoon salt
• ¼ Teaspoon black pepper
• 2 ¼ Tablespoons vegetable oil
• 1 bag watercress, thick stems removed
• 3 Tablespoon vinegar
• 3 Tablespoon Yamasa Regular Shoyu
• 1 Stalk celery, minced
• 1 cup yellow onion, minced
• ½ clove garlic, minced