For other sources of protein, you can use the simple seasoning I used for the shrimp. Chicken: you can bake it, pan fry or grill it prior to starting the spaghetti as chicken has to cook thoroughly. Salmon: I suggest pan frying or grilling after the spaghetti is made as salmon cooks quickly. Steak: you can cook on the grill or skillet after you have made the spaghetti so it can be enjoyed at the appropriate cooked temperature.