Dried pineapple is my favorite breakfast accompaniment for hot or cold cereal. Good job!
When I worked in a grocery store a Filipino woman showed me how to quickly "chunk" a pineapple, and it's a bit safer and more even...using a large chef's knife.
Cut off top and bottom, stand fruit upright.
Quarter and core fruit, leaving skin on.
Lay quarters skin-side down on cutting board, make a lengthwise ("north to south") cut in each down to but not through the skin.
Slice "east-west" perpendicular to your last cut as thin/thick as you want the slices to be, using your knuckles as a guide. Again, not all the way through the skin.
Last, "fillet" the chunks with your quarters still skin-side down by making two slices, one from each side toward your center cut.
Whole pineapple takes less than a minute for me now, being careful. That's after plenty of practice going faster with a workplace-mandated Kevlar glove on the left hand.