I mixed kale, turnip, green onions, daikon radish and lentil seeds. I had been leaning toward dried peas but realized that you get a lot more lentils per pound and they are also very cold tolerant.
This is what the seed looked like after mixing:
|Two views shown. The top view is misleading because it would lead you to believe that the mix is 90% lentils. They just dominate the top view because they lay flat.
My favorite bulking agent so far is coarsely ground limestone. Sand is too dense and the seed wants to separate out. Corn meal is too fluffy but mixes very well with the seeds and has great hand feel. Limestone seems to be the happy medium.
I was concerned that I would be feeding the birds, but the ground is so rough and lumpy that the seed just disappeared.
Now it is time for me to start praying for rain.