<human>:  Give me a kid-friendly recipe for mac and cheese.
<bot>: 
Ingredients:
 • 4 cups macaroni
 • 3 tablespoons butter
 • 4 tablespoons all-purpose flour
 • 4 cups whole milk
 • 2 cups shredded cheddar cheese
 • 2 cups shredded mozzarella cheese
 • Salt and pepper, to taste


Instructions:
1. Preheat the oven to 375 degrees and spray a 9×13 inch baking dish with non-stick cooking spray.
2. Bring a large pot of salted water to a boil. Cook the macaroni according to instructions.
3. Meanwhile, melt the butter in a large saucepan and stir in the flour. Cook and stir for 1-2 minutes. Slowly whisk in the milk and bring to a boil. Cook and stir until thickened, then stir in the cheeses. Season to taste with salt and pepper.
4. Drain the macaroni and stir into the cheese sauce. Pour the mac and cheese mixture into the prepared baking dish.
5. Bake for 25-30 minutes, or until lightly browned. Serve warm and enjoy!