Prepare the Shrimp: Season the shrimp with salt and pepper. Heat olive oil in a skillet over medium heat. Add the shrimp and cook for 2-3 minutes, flipping halfway, until pink and opaque. Remove from heat and set aside.
Cook the Noodles and Bean Sprouts: Soak the rice noodles in boiling water for 5-7 minutes or until tender. Add the bean sprouts during the last minute of soaking. Drain and rinse under cold water to stop the cooking process. Set aside.
Make the Dressing: In a small bowl, whisk together the soy sauce, teriyaki sauce, oyster sauce, white vinegar, grated ginger, Splenda, sesame oil, and water. Season with salt and pepper to taste. Set aside.
Assemble the Bowl: In a large bowl, combine the shredded white cabbage, purple cabbage, lettuce, carrots, cucumber, red bell pepper and yellow bell pepper. Toss gently to mix.
Add Noodles and Shrimp: Top the vegetables with the cooked rice noodles, bean sprouts, and shrimp, dividing them evenly among the bowls.
Drizzle and Serve: Drizzle the dressing over each bowl. Garnish with fresh mint, cilantro, and lime wedges if desired. Serve immediately.