I am trying to save as many seeds this year as I can. I have saved spinach seeds, some seeds from mescluen mixes and I will save some leaf lettuce seeds too.
To save the spinach seeds, I let them get a little dry in the garden, then hung them on the porch. When they were dry, I took all the seeds (they are the nodules on the stem) off over a pan. When I planted my garden this year I had two kinds of spinach and I didn’t plan to save seeds so my seeds are a mix of what worked in the garden this year.