Possible Clues:

• Taboo alternative to beef
• So the mare gets butchered for this?
• Equine flesh
• Food that could be made with more haste?
• Food in some countries the same, or different
• A rest home dished up food British wouldn't want?
• Food in France perhaps a mother's cooked, full of energy
• Some heart in stew? It's not served in most restaurants!