Baked Chicken Dijonnaise


4 skinless, boneless chicken breast halves (about 4 ounces each)
1/4 cup country-style Dijon mustard
1/4 cup finely chopped red onion, preferably, or white onion
1/2 cup coarsely grated Swiss cheese

Preheat oven to 350 degrees.

Line a cookie sheet with aluminum foil and coat with nonstick cooking spray.
Brush each chicken breast half with mustard, sprinkle with onion and cheese.

Bake 20 to 25 minutes, until chicken is cooked through and cheese is melted.