Whisk bread crumbs, 3 tablespoons Parmesan cheese, and oregano together in a shallow dish until evenly mixed.
Dip each chicken breast into ranch dressing. Transfer to the bread crumbs and coat evenly.
Place chicken breasts in a baking dish. Sprinkle Parmesan cheese on top. Cover baking dish with aluminum foil.
Bake in the preheated oven until chicken breasts are no longer pink in the center and the juices run clear, 15 to 20 minutes. Remove aluminum foil from the baking dish. Bake until cheese starts to brown, 5 to 7 minutes more.
Sprinkle extra Parmesan cheese on chicken after the first round of baking if desired.
Allow more baking time for thicker chicken breasts.
364.11 calories; 28.85 g protein; 12.44 g carbohydrates; 21.32 g fat; 79.32 mg cholesterol; 557.09 mg sodium.Full Nutrition
*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
**Nutrient information is not available for all ingredients. Amount is based on available nutrient data.
(-)Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.