Prep the Chicken and Vegetables: Dice the red bell pepper and yellow onion. Chop the garlic cloves. Place the vegetables at the bottom of the slow cooker to create a flavorful base. Layer the chicken breasts on top.
Make the Peanut Sauce: In a bowl, whisk together peanut butter, chicken broth, soy sauce, honey, sesame oil, chili garlic paste, and lime juice until smooth.
Combine and Cook: Pour the peanut sauce over the chicken and vegetables in the slow cooker. Use a spoon to coat the chicken evenly. Cover and cook on low for 6–7 hours or high for 3–4 hours.
Shred or Slice the Chicken: Once the chicken is cooked, remove it from the slow cooker. Use two forks to shred the chicken or slice it into large chunks. Return the chicken to the sauce and stir to coat.
Garnish and Serve: Sprinkle with chopped cilantro for a fresh, zesty finish.Serve hot over rice, noodles, or a bed of sautéed vegetables.