Betty Crocker offers a recipe for making turkey breast in a slow cooker, which involves placing turkey, vegetables and gravy into the pot, then cooking for up to 8 hours. This recipe makes 8 servings and takes about 20 minutes to prepare before cooking.
Begin by mixing together 3 medium red potatoes cut in 1-inch pieces, 8 medium carrots cut in 1-inch pieces, 1 small onion cut in wedges and the prepared gravy packet from a 5 to 6-pound bone-in turkey breast, and then place the mixture into a slow cooker. Place the turkey breast on top. Cover and cook on low heat for 7 to 8 hours, or until vegetables are tender and the center of the turkey has reached 170 degrees.
Taste of Home features a different recipe for making turkey breast in a slow cooker. This recipe makes 14 servings and takes about 10 minutes to prepare before cooking. Start by brushing a skinless 6 to 7-pound bone-in turkey breast with 1 tablespoon olive oil. Mix together 1 teaspoon dried minced garlic, 1 teaspoon seasoned salt, 1 teaspoon paprika, 1 teaspoon Italian seasoning and 1 teaspoon pepper. Rub seasoning mixture over the turkey breast and transfer to a 6-quart slow cooker, then add ½ cup water, cover and cook on low for 5 to 6 hours or until tender.