Braised Balsamic Chicken

I made this in the crockpot. Very easy to make. I prepped everything the night before and the next morning just popped everything in the crockpot and turned on low, the chicken was even frozen.

Ingredients :
  •     6 skinless, boneless chicken breast halves skinless, boneless chicken breast halves
  •     1 teaspoon garlic salt
  •     ground black pepper to taste
  •     2 tablespoons olive oil
  •     1 onion, thinly sliced
  •     1 (14.5 ounce) can diced tomatoes
  •     1/2 cup balsamic vinegar
  •     1 teaspoon dried basil
  •     1 teaspoon dried oregano
  •     1 teaspoon dried rosemary
  •     1/2 teaspoon dried thyme
Directions :
  1. Season both sides of chicken breasts with garlic salt and pepper.
  2. Heat olive oil in a skillet over medium heat; cook seasoned chicken breasts until chicken is browned, 3 to 4 minutes per side. 
  3. Add onion; cook and stir until onion is browned, 3 to 4 minutes.
  4. Pour diced tomatoes and balsamic vinegar over chicken; season with basil, oregano, rosemary and thyme. 
  5. Simmer until chicken is no longer pink and the juices run clear, about 15 minutes. 
  6. An instant-read thermometer inserted into the center should read at least 165 degrees F (74 degrees C).