A good Camping Grill would be the obvious choice for camp cooking. But they're generally too big, and too heavy for a bug out bag. A lot of people prefer a small Backpacking Stove for their bug out bags instead of a Camping Grill. Both have their place for survival camp cooking. And both have drawbacks too.
A good Backpacking Stove is great when the weather's nasty and you want to heat water or cook a meal, but a Backpacking Stove requires fuel. And while there's plenty of fuel around for the Camping Grill, their bulk and weight are a detriment. However, both are useful survival camp options, and both should be considered.