• Step 1

  Make sauce: Combine 2 1/2 tsp black pepper, teriyaki sauce, vegetarian oyster sauce, black vinegar, sesame oil, and soy sauce in bowl. Set aside.

• Step 2

  Place beef in small bowl. Add water, 1 Tbsp at a time, working in with hands until water is absorbed. Sprinkle beef with cornstarch; work in with hands to coat well. Drizzle 1 Tbsp oil over beef and work in with hands until absorbed. Add garlic and remaining black pepper; lightly season with salt. Mix well. Set aside.

• Step 3

  Heat 1/2 Tbsp oil in stir-fry pan on HIGH until oil faintly smokes; add half the beef. Cook about 2 min until browned; turn over. Sear other side about 2 min until browned. Remove beef; transfer to clean dish. Wipe stir-fry pan clean. Heat 1/2 Tbsp oil in stir-fry pan on HIGH; repeat process with remaining beef.

• Step 4

  Heat remaining oil in stir-fry pan on HIGH. Add red peppers, green peppers, and onions; cook, stirring, 2-3 min until browned and caramelized. Stir in beef and sauce mixture; cook, stirring, until heated through.

Note: When servings & ingredients are modified, nutrition & directions may vary.