I plan on planting cover crop this year in my 1/2 acre garden. I plan to seed it with a broadcast seeder, but what's the easiest way to cover the seed then. Hand raking all of that would be quite a task. I have a 3 point tiller as well as a disc.

What specifically do you intend to plant? Has the soil been tilled?

Many seeds need no covering... I like to sow before a rain event.