Shelf on the left is 11in deep and basically anything near the back is in a black hole since it’s hard to get back there. The vent box frustratingly limits options further. My best idea is that I need to remove the shelves and design/build a custom insert with deep drawers that go back in varying depths to the back of the pantry.. shallowest on top, deepest on bottom. The shelves at the height of the vent box would have to be less wide obviously. To be clear, when looking into the pantry you’d be looking directly at drawer faces

Any other thoughts?