Yeah nutella is kinda harsh, but peanuts are great! Actually, I can't think of any nut that isn't. I used to eat almonds a lot as well. There are all kinds of things to eat instead of tuna, it's just a matter of how you want to eat it. If you are making a sandwich you can use lean cold-cuts, use chicken or turkey in "salads", eggs are good protein (if you eat a lot you may want to consider using some as just whites if you are concerned about fat), cottage cheese is good and comes in a variety of fat levels, as does regular cheese (although most fat-free are nasty). One my faves now is ground turkey, which I use like beef. On that note lean beef is good. If you want really cheap really lean, get "Lauras" in the green package, but get the stuff that is on or near the "sell by date" its usually 30-50% cheaper. AND there's also yogurt. Hopefully you like SOMETHING in there!