Slice each chicken breast in half so that there are 4 pieces.
Mix together flour, salt, pepper, onion powder, and garlic powder. Dredge each piece of chicken in the mixture.
Heat 2 tbsp of olive oil in a skillet and cook chicken on each side for 4 minutes. Remove chicken and put to the side.
Add 1 tbsp olive oil and cook mushrooms for 8 minutes. Next, add garlic and cook for 30 seconds until fragrant. Add flour and cook for 1 minute. This will help with a slightly thicker sauce.
To the skillet, add marsala wine, chicken broth and herbs. Bring to a boil and add chicken to heat through.