Preheat the oven to 400 degrees Fahrenheit. Line a large baking sheet with foil and spray with nonstick spray. Set aside.

In a large bowl, toss together the potatoes, 2 tablespoons olive oil, 2 cloves minced garlic, 1/2 teaspoon salt, and 1/2 teaspoon pepper. Add the potatoes to one end of the prepared baking sheet and bake for about 15 minutes.

While the potatoes bake, prepare the chicken and green beans. In a shallow baking dish, stir together 1/2 cup grated parmesan, 1/2 cup breadcrumbs, 2 cloves minced garlic, 1/2 teaspoon salt, and 1/2 teaspoon pepper.

Coat each piece of chicken breast with about 2 tablespoons olive oil, then press it firmly into the breadcrumb mixture on both sides. Set aside and repeat for each piece.

In a medium bowl, toss the green beans with 1 tablespoon olive oil, 1 clove minced garlic, 1/2 teaspoon salt, and 1/2 teaspoon pepper.

After the potatoes have cooked for 15 minutes, remove the pan from the oven. Add the coated chicken and seasoned green beans to the pan. Sprinkle the remaining grated parmesan over the entire pan.

Return the pan to the oven and bake for another 20 to 25 minutes, until the chicken is cooked through and reaches an internal temperature of 165 degrees Fahrenheit.