In the future:
Thaw the chicken before attempting to cook. Salt and pepper the chicken, then put two Tablespoons olive oil in the skillet and heat to medium. brown on one side, about 8 to 10 minutes, then flip over and cook the other side for same amount of time.
While chicken is cooking, peel the sweet potato and yam with a potato peeler, then dice them into medium chunks about ¾ inch per side.
When the chicken is done, add some chicken broth, about 1½ cups (30 ml) to the pan, and bring to a simmer. Add the sweet potato and yam to the chicken, and simmer for twenty minutes. Cover with aluminum foil while simmering. After twenty minute should be ready to eat.
Cook a green vegetable while the chicken is cooking.
Next time, be prepared and get a jar of curry sauce and a can of coconut milk to cook the chicken in instead of the broth. And use smaller pieces instead of a quarter chicken.