No problem! This recipe is versatile; feel free to substitute with any cooked meat you have on hand. If you only have a little bit of leftover steak you can also supplement it with some black beans. If you are starting with raw tri tip you need to cook first, my favorite way is to prepare the tri tip in a sous vide and finish it on the grill, or for a faster option to simply cook the tri tip in a cast iron skillet.