Peanut/Nut & Shellfish free fast food restaurants?

I have really bad allergies to all nuts and shellfish. I need to know some restaurants to eat at that are safe for me. I know some already that are safe like McDonalds, Harveys & Little Caesars. I checked websites to other ones I normally eat at and they have things with nuts and shellfish so im not going to eat there anymore. If you know any that are nut and shellfish free that would help alot! Thanks!