in a large skillet over medium-high heat, heat oil.

season chicken with salt and pepper and cook until golden and cooked through, 6 minutes per side.

transfer to a plate.

add balsamic vinegar to skillet to deglaze, then add garlic and stir until fragrant, 1 minute.

add chicken broth

add tomatoes and season with salt.

let simmer until soft, 5 to 7 minutes.

stir in basil.

return chicken to skillet and nestle in tomatoes. top with mozzarella and cover with a lid to melt cheese.

spoon tomatoes over chicken and serve.