Eating tuna salad sandwiches may get a little boring although tuna really isn't tasteless. But if you want to experiment, try adding a little seasoning when you make the tuna. There are so many different ways to spice it up without adding any calories. For example, adding paprika, pepper, chopped onions or pickles, cayenne pepper, etc. Even adding some chopped jalepeños can make it really interesting if you can handle the heat! And check out the bottled condiments on your grocery store shelves the next time you're shopping. They go way beyond steak sauce and ketchup. Try branching out and using piri-piri or teriaki sauce for a pleasant change.