Heat olive oil in a large skillet over medium high heat.
Add the chicken, then sprinkle the chicken with salt and pepper.
Cook the chicken for about 4 minutes on one side, then flip and cook 3 minutes on the other side. (The exact timing will depend on how thick the chicken breasts are.)
After cooking 3 minutes, top the chicken with the pesto, spreading to cover as much as you can of the top.
Then place the fresh mozzarella on top so it can start melting while the chicken gets to internal temperature of 165ºF. This will take an additional 3-5 minutes. Put a lid on the pan if needed to promote the cheese melting.
In a small bowl, whisk together the melted butter, garlic and juice of 1 lemon.
Drizzle the lemon sauce over the chicken.
To serve, top the chicken with fresh tomato and garnish with fresh basil.
Serve immediately.
Notes
Refer to the article above for more tips and tricks.The calories shown are based on the recipe serving 4, with 1 serving being 1/4 of the chicken and toppings. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate. **We are not dietitians and recommend you seek a nutritionist for exact nutritional information. The information in the nutrition box are calculated through a program and there is room for error. If you need an accurate count, I recommend running the ingredients through your favorite nutrition calculator.**