Cut the chicken breast into bite-sized pieces.
Slice the mushrooms into easy-to-eat sizes.
Thinly slice the garlic.
Heat olive oil in a pan and stir-fry the garlic over medium heat.
Add the chicken breast and cook until the outside turns white.
Add the mushrooms and season with salt and pepper.
Continue stir-frying until all ingredients are cooked through.
Serve the finished dish in a bowl.