My bottom freezer is designed in a similar manner. I divide it into zones: Prepared items (leftovers usually packed in round plastic soup containers) and Ingredients. Ingredients are divided by meats, cheese, vegetable, and “pantry”. Pantry items are butter, pesto, mole sauce, pastry dough, etc.
I use flexible perforated style plastic bins to keep like with like. Harder plastics seem like they eventually become brittle and break after extended time in the freezer. I think I purchased them at the Container Store but don’t see them on the website. I have used card board shoe boxes as a temporary fix.
I keep an inventory clipped to the side of the fridge. Cross items off as used, jot them down when replaced. Once it gets hard to read or the contents become unruly I pull everything out and start over. Bringing the laptop into the kitchen and typing the inventory as I reorganize works well for me.
I don’t use a lot of ice so usually the bin is removed and a single ice tray takes care of it plus uses less room.
It’s an ongoing process…
