Mother Teresa died and went to heaven. God greets her at the Pearly Gates.
"Be thou hungry, Mother Teresa?" saith God.
"I could eat," Mother Teresa replies.
So God opens a can of tuna and reaches for a chunk of rye bread and they share it. While eating this humble meal, Mother Teresa looks down into Hell and sees the inhabitants devouring huge steaks, lobsters, pheasants, pastries and wines. Curious, but deeply trusting, she remains quiet.
The next day God again invites her to join him for a meal. Again, it is tuna and rye bread. Once again, Mother Teresa can see the denizens of Hell enjoying caviar, champagne, lamb, truffles and chocolates. Still she says nothing.
The following day, mealtime arrives and her can of tuna is opened. She can't contain herself any longer. Meekly, she says: "God, I am grateful to be in heaven with you as a reward for the pious, obedient life I led. But here in heaven all I get to eat is tuna and a piece of rye bread, and in the Other Place they eat like emperors and kings! I just don't understand..."
God sighs. "Let's be honest," he says. "For just two people, does it pay to cook?"