I know a lot of people hate tuna, but this meal is easy as long as you know how to use a frying pan.
I mix a tin of tuna (in oil) with at least one egg, maybe two, and some grated cheese. Add in some seasoning to taste, and use a spoon to drop into the pan. Flip them after a few minutes. You might want to finish them off in the oven. They are amazing with smashed avocado on top, I like to mix in some chilli and mayo with the avocado. Also nice in a sandwich.