I have never been really good at cooking chicken.  I always buy it, and it ends up staying in the freezer for a long time.  I found this recipe and decided to give it a try since it sounded fairly easy.  It was, and the chicken turned out great!  This is a simple recipe and can be done in less than 20 minutes. 
Ingredients:
2 tsp vegetable oil
3 Tbsp  balsamic vinegar
2 tsp  Dijon mustard
1 clove(s) (medium) garlic clove(s), crushed  
1 pound(s)  uncooked boneless skinless chicken breast(s), four 4-oz pieces
2 cup(s)  fresh mushroom(s), small, halved
1/3 cup(s)  canned chicken broth
1/4 tsp  dried thyme, crumbled
Directions:
1) In a nonstick skillet, heat 1 teaspoon of oil.
2) In a medium bowl, mix 2 tablespoons of vinegar, the mustard and garlic. Add chicken and turn to coat.
3) Transfer chicken and marinade to skillet. Sauté chicken until cooked
 through, about 3 minutes on each side. Transfer chicken to a platter 
and keep warm.
4) Heat remaining teaspoon of oil in skillet. Sauté mushrooms for 1 
minute. Add broth, thyme and remaining tablespoon of vinegar. Cook, 
stirring occasionally, until mushrooms are deep brown, about 2 minutes 
longer.
Serve chicken topped with mushrooms.
Serves 4; 4 WW Points+ per serving