Eat where the route naturally lands
Food should support Old Town and Bock first, Corniche and Grund afterward, Kirchberg separately, not pull the day apart.
- Anchor the day around Bock Casemates or Chemin de la Corniche.
- Keep Pfaffenthal lift for the right weather and timing.
I would choose food in Luxembourg by location first and novelty second. The good meal is the one that lands after Bock Casemates or Chemin de la Corniche, not the one that forces a tired transfer at the worst hour.
The practical rule is simple: Old Town and Bock first, Corniche and Grund afterward, Kirchberg separately. That keeps the day grounded instead of making it feel like a loose checklist.