Prepare the Chicken Mixture:

In a large mixing bowl, combine ground chicken, breadcrumbs, Parmesan cheese, egg, minced garlic, chopped onion, salt, and pepper. Mix until well combined.

Shape the Patties:

Divide the mixture into equal portions and shape each into a patty, about 1 inch thick.

Cook the Patties:

Heat olive oil in a large skillet over medium-high heat. Cook the chicken patties for about 5-6 minutes on each side or until golden brown and cooked through. Remove the patties and set aside.

Make the Creamy Sauce:

In the same skillet, add chicken broth and bring to a simmer. Scrape the bottom of the pan to release any browned bits. Stir in heavy cream and lemon juice, and simmer until slightly thickened. Season the sauce with salt and pepper.

Combine Patties and Sauce:

Return the chicken patties to the skillet, spooning the sauce over them. Cook for an additional 2-3 minutes to heat through.

Garnish and Serve:

Garnish with chopped fresh parsley before serving.