Yeah, I found this happened sometimes, especially the really bad hypos. Generally the hunger passes some time after my sugars are normal again, so once I've had enough to treat the hypo I try to stall myself as long as I can before eating more.
Here are a few different ways I've dealt with it at different times - all have been pretty successful:
-My partner (very well versed in Type 1) tells me when to stop eating and gives me moral support in resisting the hunger
-Eating low-carb, low-GI, or slow-chewing foods, particularly stuff like artificially sweetened candy, chewing gum, etc. Obviously treat the hypo properly first.
-Carb counting (or getting partner to do it) all the food I eat, which delays the process a bit, then injecting an appropriate amount of rapid insulin to prevent a bad high. (Be careful not to bring on another hypo though - remember there is likely still fast-acting insulin in your system, and you may also have gone hypo due to increased insulin sensitivity)