Cook the Chicken: Heat oil in a skillet over medium heat. Season chicken breasts with salt and pepper and cook for about 6-8 minutes on each side until golden brown. Let cool slightly before slicing.
Prepare Veggies: Chop the bell peppers, carrots, cucumber, and red cabbage into bite-sized pieces.
Make the Dressing: In a bowl, whisk together peanut butter, soy sauce, lime juice, honey or maple syrup, and Sriracha until smooth.
Toss Everything Together: In a large bowl, combine sliced chicken and chopped veggies. Drizzle with dressing and toss until evenly coated.
Garnish & Serve: Top with cilantro and green onions. Chill for about 30 minutes if desired before serving.