Do they do this at Marine PLC?
Not when I went through Juniors this summer.
But, you will have plenty of encouragement from your staff to finish your meals in a timely manner. It is hard at first, but you're stomach expands and you learn what to grab and what to leave behind.
About the third day I only chose a fork for my utensil, bad decision. I still fondly remember having my Platoon Sergeant and 2-3 other SI's screaming in my ear and pounding on the table ordering to finish the little bit of pudding I had on my tray. I can only imagine how hilarious I looked trying to scrape pudding out of the little section of my tray with the tip of my fork whilst screaming "Aye Aye, Staff Sergeant" and "Aye Aye, Gunnery Sergeant" at the top of my lungs. This went on for a good 3-5 minutes before I was ordered to just go.
After that I always got at least a fork and a spoon, never got pudding again, and always finished everything on my tray.