Toasted Pasta and Meatballs in Parmesan Brodo

Name: Toasted Pasta and Meatballs in Parmesan Brodo
Ingredients: One 4-ounce wedge Parmesan cheese with rind, rind removed and cheese finely grated; 8 cups chicken stock or low-sodium broth; 3 garlic cloves, thinly sliced; Kosher salt and freshly ground black pepper; 1 pound ground pork; 1/2 cup Italian-style dry breadcrumbs; 1 large egg; 1/4 cup chopped dill, plus sprigs for garnish; 2 tablespoons unsalted butter; 3 tablespoons extra-virgin olive oil; 4 ounces mixed dry pastas, such as orzo and angel hair; 2 1/2 ounces curly or leafy spinach leaves (not baby); 1 cup frozen peas