Game and Grains
Since NewEarth is a different planet and growing food from OldEarth doesn’t always work as expected, there are a number of indigenous species that the humans have cultivated and even more that the dragons have used. That being said, combining the two cultures gives them an even broader selection of foods to work with. The importance of variety allows for survival when weather patterns, bugs or fire take out certain species and leaves everyone foraging for foods. This goes for plants, but animals as well.