As I mentioned in my previous post about food, I am fine with eating similar foods. Especially as a vegetarian, I have similar proteins that I eat on a daily basis in an effort to fulfill my protein requirements. If I ate meat, I'm sure I could replace some of my typicals; eggs, tofu, yogurt, beans/chickpeas, veggie burgers, cottage cheese, whey protein, milk with tuna, fish, chicken and turkey. Remember, protein is critical for all individuals (unless you have a protein disorder such as Phenylketonuria, PKU) and it is important that if you are exercising (which you should be and I'm sure you are :) that you focus on the many foods you can eat, on a daily basis, that will provide you with an array of amino acids (specifically essential amino acids). So, because my training changes (as should yours) on a daily/weekly basis, so should my food. Oatmeal + nuts works great for me for breakfast on Mon after a light swim but my Monday breakfast would not properly refuel my muscles aft...
3x Author, Board Certified Sports Dietitian, Master of Science in Exercise Physiology, 20 x Ironman finisher, 3x XTRI finisher, 6xIM World Championship finisher, Triathlon Coach, 32-year Vegetarian. Trimarnicoach.com