K.S.
wow! I think you are doing great to have them eat as many things as they do! I would say to just keep introducing different kinds of meats and maybe they will take one day. My mother always jokes my sister only ate PBJ until she was 10. But she wouldn't eat anything else! So I think you are ahead of the game. From what I have heard, it sounds pretty normal. Do you eat meats?
I remember eating the same things all the time when I was little too. I think we ate hot dogs like crazy! I would say not to worry.