Preheat your oven to 375°F (190°C).

In a skillet over medium-high heat, heat avocado oil, then add seasoned chicken breasts and cook until golden brown, about 5-7 minutes per side.

Transfer the cooked chicken to a baking dish, add chopped tomatoes, oregano, and garlic, then drizzle with balsamic vinegar.

Sprinkle shredded mozzarella cheese over the chicken and vegetables.

Bake uncovered in the oven for 18-20 minutes until the cheese is melted and bubbly.

Allow to rest for 5 minutes before garnishing with chopped basil.