(I don't often answer questions, but this one is a little familiar)
In this case, I could recommend a slightly different approach, ready-made fruit models are taken in a rifled form, and through animation, cutting is simulated and in fact, the player is cheating, because visually if you put everything together for example the same cucumber. The chip of such a campaign is that you can control the process of "cutting" or separating one piece of a common heap with the help of Animation and built-in methods of interaction with it.
But as an alternative, yes, you can do everything through the destructibility of objects (well, imitate it by the substitution method), here is an example (not the best but so for understanding)
- (link): https://www.youtube.com/watch?v=7s-RaV2wikI
I hope something helped, there will be questions then ask.