It sounds like a perfect fit for a 'lasagna garden'. Google it for more info, but basically you just 'layer' your ingredients to make raised beds. You don't dig or till anything; just start with a layer of wet newspaper-several sheets thick or cardboard to mulch out the weeds. Then do a layer of hay or straw, a layer of manure, a layer of grass clippings and or kitchen scraps, a layer of mulch-whatever you would throw in a compost pile. You can do a layer of chicken litter in the middle there and it would be great! Everything just breaks down together. You can wait to plant the garden or do it right away. I planted right away and everything looks great, especially the tomatos. I'll never do a traditional garden again...