Preheat oven to 400 degrees.
In a glass baking dish, drizzle olive oil and swirl to coat the bottom of the dish.
Add chicken breasts and potatoes to dish and sprinkle lemon juice, herbs, salt, and pepper over.
Stir to mix.
Add garlic and lemon to dish, placing over chicken and potatoes.
Cover with aluminum foil.
Bake, covered, for 20 minutes, until chicken is white and firm.
Remove foil.
Flip chicken to other side and stir potatoes, and cook until lightly browned and 165 degrees internal temperature, flipping every 5 minutes - which will be about 10-15 minutes total.
If chicken is 155-160 degrees internal temoerature, and you'd like a little darker color on the dish, turn the broiler to high and finish cooking under broiler to get a lovely browned, crispy finish to the chicken.
Serve immediately over rice, pasta, or vegetables - leftovers are fabulous over salads or in wraps and sandwiches!