It is harder for many of us in the winter to try to stick with a "non pellet" diet. Certainly, without pellets one needs a good alfalfa hay. One might be able to get by on good clover, bean, or trefoil hay, but it would take more work making sure they had other nutrients, and usually these hays are harder to find than good alfalfa.
I have neither the time, or a decent South facing window to try to grow greens in the winter, so I only supliment in the summer. I did luck into some greens and apples culled from a green grocier, but it is noting I can depend on. I am trying to raise a breed of (crossed-bred) rabbits that can adapt well to pellets or grains/hay/greens, so it is important that I feed as much of a non-pellet diet as I can in the summer to test them. Still, with all the good imput from the people here, we are getting closer and closer to a good non-pellet system and I thank all of you that have provided so much imput. Even when we fail with a certain diet, it adds to the knowledge.