When lockdown grounded his air travel YouTube channel, Nik Sennhauser got creative. Airplane food may not have the greatest reputation, but dining on a plane is undeniably an experience. And for many people who have seen their travels grounded due to the COVID-19 pandemic, even the most mediocre of airline meals may suddenly have a nostalgic appeal. In fact, a cottage industry has sprung up of airlines offering their food for at-home consumption—like Finland's Finnair and Russia's Ural Airlines. Nik Sennhauser has certainly missed dining on planes. For six years, the Glasgow, Scotland, resident who daylights as a business support...