You can make this recipe without salsa. Instead, season the meat with a packet of taco seasoning and pour 1 cup of water or chicken broth over the meat. Alternatively, you can use two cans of Rotel with a little bit of water - start with 1/4 cup and add more as needed. Rotel tends to be spicier so keep that in mind if you do use it. Enchilada sauce may also work, however it will need to be thinned with a bit of water to ensure your pressure cooker does not give off the burn notice.