This shrimp scampi is transformed into a keto meal by using shirataki noodles. I like to double the amount of crushed red chiles for an extra kick! This will make 3 lunch-sized portions or 2 dinner-sized portions. Grate some Parmesan cheese on top before serving, if desired. Meanwhile make a quick shrimp stock: In a small pot, over medium heat, add the shrimp shells and onion. Cover with water and bring to a boil. Reduce the heat and simmer for 20 minutes.