Name: Florentine Stuffed Chicken
Ingredients: 1 (10 ounce) package frozen chopped spinach, thawed and drained; 0.25 cup grated Parmesan cheese; 0.5 cup chopped onion; 4 bone-in chicken breast halves, with skin; 2 cups spaghetti sauce; 0.25 cup shredded mozzarella cheese

Ingredients

1 (10 ounce) package frozen chopped spinach, thawed and drained
0.25 cup grated Parmesan cheese
0.5 cup chopped onion
4 bone-in chicken breast halves, with skin
2 cups spaghetti sauce
0.25 cup shredded mozzarella cheese

Steps

Preheat the oven to 350 degrees F (175 degrees C).
In a medium bowl, mix spinach, Parmesan cheese, and onion until thoroughly combined. Stuff 1/4 of the mixture into the cavity of each chicken breast. Place stuffed breasts into a 9×13-inch baking dish and cover with spaghetti sauce.
Bake in the preheated oven until no longer pink in the center and the juices run clear, about 35 minutes. An instant-read thermometer inserted into the center should read at least 165 degrees F (74 degrees C). Sprinkle with mozzarella cheese and bake until melted, about 5 more minutes.