Step 1

Combine chicken, peanut butter, chicken broth, zucchini, bell peppers, soy sauce, minced garlic, and sugar in a slow cooker. Cover and cook on High for 1 hour. Stir, then cover and continue cooking until chicken is cooked through and vegetables are tender, 2 to 3 more hours. Stir in lime juice.

Step 2

If sauce is thinner than you would like, combine 1/2 tablespoon cornstarch (use a full tablespoon if sauce is very thin) with enough water to form a paste. Whisk paste into the peanut butter sauce and allow to cook until thickened. Taste and adjust seasonings if desired.

Step 3

Meanwhile, fill a large pot with lightly salted water and bring to a rolling boil. Cook linguine at a boil until tender yet firm to the bite, about 8 minutes. Drain and stir noodles into the chicken and sauce. Garnish with peanuts.