Since this is a national park, you might not find elaborate or well laid out restaurants here and options tend to be somewhat limited, other than those attached to hotels, resorts and lodges. Hence, these tend to be the most convenient options and can provide you a decent variety. There will be small tea shacks in and around the area. It is advisable to carry your own snacks (chips, cake, etc.) or make personal arrangements for your trip here, to be on the safer side.