Tomato Mushroom Chicken

I've been making this recipe so long, I forget where I found it!

6 tomatoes, cubed
1 c. chopped onion (I use the frozen precut ones)
1 pacakge of already sliced mushrooms
1 1/2lb of chicken breast tenders
1 tsp salt
1/2 tsp pepper
1/8 tsp ground mustard

In crock pot combine vegetables. In a small bowl or custard dish, combine spices. Dump spices with vegetables and stir. Add chicken, stir. Cook on low 6 hours or until done.

Serve with pitas, tortillas, pasta, or rice.

Or just serve with steamed veggies on the side. =)