Cut the chicken breast, red bell pepper, and red onion into uniform 1-inch cubes.
Thread the chicken and vegetables onto skewers, alternating between the meat and the produce.
Season the assembled skewers evenly on all sides with garlic powder, ground ginger, sea salt, and black pepper.
Preheat a grill or grill pan to medium-high heat and lightly coat with a high-heat cooking oil.
Grill the skewers for 10 to 12 minutes, turning every few minutes, until the chicken is cooked through and the vegetables are slightly charred.
In a small bowl, whisk together the creamy peanut butter, coconut aminos, sesame oil, honey, and lime juice until the sauce is smooth.
Remove the skewers from the heat and serve immediately, drizzling the peanut sauce over the top.