I could have used a variety of lettuces. Before I transplanted them in my garden, I snipped a few off to top off a meal. After that, every time I needed lettuce for a sandwich, more snips.
They sell lettuces in plastic tubs.
Keep the tubs, line them with newspapers and layer some see growing mix with your favorite greens.
This tray of mine has been producing for months.
After I snip off a few leaves, more will grow.
I'm expecting the growth to continue for a while.
Go on. An envelope of seeds will set you back a couple of dollars, the price of one head of lettuce.
Collect all your boxes and try new types of lettuces in each one.
Let the kids tend them by watering the boxes every other day, keeping the soil moist but not soaked.
This box grows on a table. Put yours wherever there is good, indirect light.
The more you snip, the more it will grow.