Slow Cooker Chicken Breasts with Carrots and Potatoes

whole red onion, sliced

Cooking spray

carrots, sliced

small round red potatoes (about 1 pound), cut into 1/2-inch slices

chopped fresh thyme

salt, divided

freshly ground black pepper, divided

large boneless chicken breasts, cut in half

jar chutney or salsa (I used Harry & David’s Tomato Basil Chutney)