Macaroni and Cheese Bites

Name: Macaroni and Cheese Bites
Ingredients: 1/2 pound macaroni noodles, uncooked; 2 tablespoons butter; 2 tablespoons flour; 1.5 cups whole milk; 1/2 cup half and half; 1 cup grated white cheddar cheese; 1/2 cup grated Gruyère cheese; 1/2 cup freshly grated Parmesan cheese; 1 teaspoon kosher salt; 1/2 cup flour; 2 eggs, lightly beaten; 2 cups panko breadcrumbs; 4 tablespoons olive oil; marinara sauce, for dipping (optional)