To toss or not to toss...

Hey guys!

I really love the idea of mixing a bunch of seeds and just tossing them onto my lawn/backyard. The thing is, I have (relatively speaking compared to an acre) a small backyard in the suburbs.
What is something else I can do to emulate the seed tossing to make it a little more organized but still have a really nice mixture?
I want to plant a few wild marigolds,  borage, nasturtium, lots of veggies (carrots, tomatoes, peas, beans, corn, squash, pumpkins, a big variety of lettuces, spinach, kale, and hopefully more), grapes, some berry bushes. lots of herbs, (mint has already taken over 1/4 of the backyard, it was planted before I moved in) and anything else you could recommend!
I live in Ottawa, Canada, so I'm in cold-hardy zone 5.

Thanks!

Thanks!

Personally I don't mix my seeds to toss them, because this makes an uneven distribution as the seeds tend to fall depending on their weight.  I've found it's best to toss them by individual type, making several passes.  In my own garden I will plant the biggest seeds by individually pushing them an inch or so into the soil, then the next largest sizes are distributed around and I cover them with a bit of sifted soil, and so on until the seeds which are tiny or which prefer light to germinate.  Those I just press into the surface with the back of a rake.  It ends up looking like this:   

seed balls