Preheat the Oven: Preheat your oven to 375°F (190°C). Lightly grease a 9x13-inch casserole dish with cooking spray or butter.
Cook the Pasta: Cook the pasta according to package instructions until al dente, then drain and set aside.
Prepare the Chicken: Season the chicken breasts with salt and pepper. Lightly dredge them in flour to coat.
Cook the Chicken: Heat olive oil in a large skillet over medium-high heat. Cook the chicken breasts for 4-5 minutes per side, until golden brown and cooked through. Remove from skillet and set aside.
Make the Piccata Sauce: In the same skillet, melt butter over medium heat. Add the lemon juice, capers, and chicken broth, scraping up any bits left from the chicken. Stir in the heavy cream and simmer for 2-3 minutes until the sauce thickens slightly.
Assemble the Casserole: Slice the cooked chicken into thin strips. In a large mixing bowl, combine the pasta, sliced chicken, and Piccata sauce. Stir until evenly coated.
Transfer to Casserole Dish: Pour the chicken and pasta mixture into the prepared casserole dish. Top with shredded mozzarella and grated Parmesan cheese.
Bake: Place the casserole in the oven and bake for 20-25 minutes, until bubbly and golden on top.
Garnish and Serve: Remove from the oven and garnish with fresh parsley before serving. Enjoy!