Help me identify my tropical house plant. What is it?

My plant looks very similar to a Peace Lily (Spathiphyllum) but I don't think it is the same, because since the 2 year I bought it from Fred Meyer indoor nursery it has never had any white flowers, but it continues to grow a new giant leaf out of the middle every 4 to 5 months or so.

The spathe shape leaves are almost the same as a peace lily, expect instead of the leaves growing out of the ground circling and area, the newest leaf always sprouts from between the last newest leaf and its nearest neighboring leaf. The oldest leave is always the one on the outside closest to the base, and it eventually splits off from the main stalk and dies.

My plant is about 3 feet tall, and the leaves are about 8 to 10 inches long, and 4 to 6 inches wide. Each stalk grows one leaf, with the stalk tapering out towards the end of the leaf, and veins create a slightly ribbed effect as the run diagonally out from the rib to the edges of the leaf, evenly spaced.

Last week I was amazed to see a plant that looked exactly like mine at a trendy restaurant, but it was gigantic compared to mine! It was over 10 feet tall, with the leaves reaches over a foot in lenth, and about 8 to 10 inches across.

Please help me to indentify this plant. What is it called? Bonus if you can provide tips on how to better care for it, or how to make it super huge like the one I saw at the restaurant (or do you think that was a specialty hybrid species?).