should we let him cook?

@title

Let him

The average density of the Moon is 3.34 grams per cubic centimeter, while the average density of a banana is about 0.7 grams per cubic centimeter, so the Moon would have a weaker gravitational force

this could imply larger tides, also, the banana will begin to collapse in on itself into a sphere, so while that's happening, matter could be falling down on earth. after around 100 years, it should settle down and be as if the moon was never a banana.

...? no the tides will be smaller because the moon will have less mass. additionally no matter will fall down to earth and also after 100 years the banana moon will still be like a banana. the moon is composed of primarily rock (43% oxygen, 20% silicon, 19% magnesium, 10% iron, 3% calcium, 3% aluminum, 0.42% chromium, 0.18% titanium, and 0.12% manganese plus 1.28% trace metals) while the banana is made of organic material

oh, sorry, I misunderstood your original statement, I thought the ORIGINAL moon would be less heavy than the banana.