Sausage Stuffed Anaheim Chiles

Name: Sausage Stuffed Anaheim Chiles
Ingredients: 1 tablespoon ground fennel; 1 tablespoon fennel seeds; 1 teaspoon freshly ground black pepper; 3 cloves garlic, minced; 2 whole Calabrian chiles, minced; 1 pound ground pork; 1/4 cup grated Parmigiano-Reggiano, plus more for serving; 1/4 cup grated Pecorino-Romano; 1/4 cup whole milk ricotta; 1 large egg; 2 teaspoons kosher salt, plus more for sprinkling; 4 Anaheim peppers, stems removed, sliced in half lengthwise and ribs and seeds removed; 2 cups tomato sauce; 2 tablespoons extra-virgin olive oil; 1/2 cup olive oil; 2 cloves garlic, minced; 1 cup fresh basil leaves, chopped; 1 tablespoon Calabrian chiles, minced; Pinch kosher salt