Feeding Fish Groceries

I have being experimenting with feeding my fish some of the stuffs I
eat. Here are some results:

I have Danios, Platies, Swordtails, Gouramis and others. I found that
mushed peas were surprising well received. Broccoli and zucchini were
eaten but without much enthusiasm. I shredded a mid-sized shrimp and
threw it in my 2 tanks and it was consumed within 2 days. The swords
and platies loved the shrimp. My 2 Blue Gouramis seem to the least
picky of my fishes. I really love my Gouramis, too bad I can't keep
more than one per tank.

I will probably try feeding them some beef next. Any suggestion on
what else to try?