Holographic Meatloaf is a projection of meatloaf made by Karen. It only appears in the episode The Algae's Always Greener. Plankton stated that was the only thing he could eat from his lack of money. He eats this with a drink (most likely soda). The only time he liked the meatloaf was in the end of the episode. Yet he didnt like it in the start.
Holographic meatloaf
Plankton with the Holographic Meatloaf
When Plankton saw the Holographic Meatloaf Heres is what he said.
Holographic Meatloaf...(bored)
Here is what he said the second time
Holographic Meatloaf...My favarite
He clearly had a change of heart.