Chicken, Apple and Potato Hash

I found this recipe in a back issue of Cooking Light. I promptly lost it, after having made it actually, according to the recipe once. Here is my remembered approximation.

1 tablespoon olive oil
2 boneless, skinless chicken breasts, cut into small chunks
2 apples, diced
2 potatoes, diced
1 onion (optional), chopped
1 teaspoon salt
1 teaspoon sage
crushed red pepper and black pepper to taste

Heat olive oil in large skillet, add potatoes and saute. Add chicken pieces, apples and potatoes. Sprinkle in seasoning. Serve when some of the food is turning a pretty golden, and all is cooked.