A harvestable lettuce plant. Children can harvest it as well; they use the standard “Swipe to Inventory” animation (which is pretty much the same as the Harvest one, only with a different sound and no prop).
The plant has three growth states and works like any other garden plant, except that it has a custom harvesting interaction: instead of growing fruits that are removed, the whole plant is harvested when it has reached maturity (takes about as long as the spinach); the sim gets six harvestables in return, and the plant it is reset to its sprout state. This is because if I’d use the actual harvestables as leaves, the majority of the plant would be the harvestables, and since those do not have a dry state one wouldn’t be able too see when the plant falls dry. (It has a dry state too btw, I just haven’t yet managed to make a screenshot of that).
Note that the leaves that are harvested currently know nothing about the plant they come from; they will always be “Normal”.
The harvestable leaves can be eaten raw or used for any recipe that requires vegetables. There are recipes for Garden Salad and BLT in More Logical Cooking that require lettuce as an ingredient.
To get a lettuce plant or leaves in game, use debug mode and search for “lettuce” or Buy Ingredients from Fridge (graycurse).
For those interested in how custom harvestables work, I posted an overview in mts Create > Tutorials.
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Leaves (Harvestable): 21V/18F
Sprout, small: 21V/18F + soil
Sprout, small: 46V/39F + soil
Lettuce Plant, high poly: 130V/133F (healthy), 130V/91F (sparse) + soil
Lettuce Plant, low poly: 57V/40F (healthy), 57V/30F (sparse) + soil
Mesh and texture of the fully grown plant are based on the Maxis lettuce plot (World object, available for Buy/Build Mode here (Liberated Garden Stuff)), the rest is derived from that.
blender, Paint.net, TSRW/Milkshape, Notepad++, s4pe.