Stuffed Portobello Mushrooms

So, we just celebrated Thanksgiving. In an effort to eat clean, I experiment with the traditional stuffing and came up with this:

1 onion
1 green apple
1/2 cup walnuts
3 stalks celery
3tbs butter
12 portobello mushrooms (medium)

Dice everything up, and scrape the insides of the mushroom out to prep them for stuffing, Rub the outside of the mushrooms with olive oil and set on baking tray. In a pan heat butter then add, onion, apple, celery, and the insides of the mushrooms, saute' for 10 minutes. Add salt, pepper and sage to taste. Stuff mushrooms and bake at 160c for 10-15 minutes.

Yum!