A leak resistant food sleeve for holding single-serving food items is provided. The sleeve may be constructed from a blank that is folded into the sleeve when ready to use. The sleeve consists of two major and two minor sidewall panels, and first and second ends. The major and minor sidewall panels are folded to form a box-like structure. The first end consists of two major end flaps, two minor end flaps, and gusset panels extending between and foldably connected to one of the major end flaps and one of the minor end flaps. The gusset panels become layered between the minor end flaps and major end flaps when each is folded inward to close the first end, such that the minor end flaps, gusset panels, and major end flaps form a web of material that prevents fluidal and viscous substances from leaking out of the first end.