In a skillet on medium heat, heat olive oil and then add chicken.
Season chicken with thyme, salt, and pepper. Cook, stirring chicken frequently for about 5 minutes.
Add garlic and sauté for about one minute. Next add apples and onions to the skillet and stir.
Mix in the applesauce and chicken stock. Cover skillet and simmer for 8 minutes.
After 8 minutes, using a meat thermometer, check to see that the chicken is cooked to 165 °F.
When chicken is fully cooked, add Dijon mustard to the skillet and stir to combine. Serve warm.
Notes
I prefer to use Granny Smith apples for this recipe, but any apple will be fine.You can use chicken tenders or leave the chicken breast whole, if you don't want bite-sized pieces. I prefer bite-sized pieces in this recipe because they are quick to cook and easy to eat.