While the meatballs are baking, bring a large pot of water to boil. Sprinkle in some salt, then cook the pappardelle pasta. Drain.
While the pasta is cooking, heat up the olive oil in a large skillet.Â
Add the minced garlic and cook until fragrant, about 30 seconds.
Add the spinach, cook until the spinach has visibly wilted—about 1 to 2 minutes. Remove the spinach and garlic from heat into a bowl.
In that same skillet, melt the butter. Sprinkle in the flour and whisk until combined.
Slowly pour in the milk, about 1/4 cup at a time, whisking as you do so. This should create a nice white roux.
Sprinkle in the shaved parmesan, and mix together with a rubber spatula. Turn off the heat.
Add in the spinach and garlic, as well as the cooked pappardelle. Stir to combine.
Using tongs, separate the cheesy spinach pasta into four large bowls. Divide the chicken meatballs into four and place them on top.
Sprinkle with fresh cracked pepper if desired, and serve immediately.