Sounds great, Patti!
When you build your lasagna bed you can just layer or mix in all of your ingredients. Thick layers or big clumps of lawn clippings might not be the best, but add a bit at a time in between other stuff and they'll be just fine. If you have them (and want to), you could also add broken branches, twigs, or even logs on the bottom of the heap for an even more self-sustaining plot.
You can read about this method, called Hugelkultur, here
http://garden.org/ideas/search...
Or do a search for it in this forum
http://garden.org/forums/view/...
Fun stuff...starting beds and getting things growing!
See ya around the site!
Any questions, just holler out and we'll be happy to assist.