For 1-for-1 Fatburger Menu (Ala Carte) (save ~$15) Fatburger recommends you hold their burgers with both hands; that’s how hefty and juicy they are! What’s more, every meal is made to order as you like it. You can go for either the Single ($9.50), Double ($13.50), Triple ($17.50) or the Quad ($21.50) depending on how hungry you are. All burgers come loaded with fresh condiments such as lettuce, tomato, mayo, mustard, relish, onions, and pickles.