Pancetta and Peas Mac and Cheese

Name: Pancetta and Peas Mac and Cheese
Ingredients: 6 tablespoons unsalted butter; 1/2 cup all-purpose flour; 4 cups milk; 1/4 teaspoon ground nutmeg; salt and pepper; 10 ounces gruyere cheese, grated; 3-4 tablespoons olive oil; 4 ounces pancetta, thin sliced at the deli and then diced at home into approximately 1/2 pieces); 1 medium shallot, diced; 1/8 teaspoon crushed red pepper; 1 cup peas; 1 pound elbow macaroni; 1/2 cup panko bread crumbs (panko are Japanese-style bread crumbs and are more coarse than your average bread crumb); 2 tablespoons unsalted butter