Bingo! I have a 2 foot piece of 1/2 PVC. Just place one end in the dish drop the food down the pipe and the food is in the dish. Before I did that I had an infestation of copepods. That's okay though, I feed them to my fry in other tanks.
What I do is put a little water in the dish and then put the food in until it doesn't float in the water. I then put my finger over the food as I lower it into my tank. I'm going to have to try this PVC trick. Seems a lot easier than what I do currently
I have the dish permanently sitting in the substrate. I use the pipe to drop the food in and then I suck it out with a hose when feeding time is over. I found the high-walled dishes to be useful for that purpose and since it's sitting flush to the substrate the shrimp find the food.
I will add that since most of my shrimp I breed are neos, I use a sand type substrate which doesn't allow food particles to go into crevices as much as ball substrates. So I don't have to worry about a food dish in those tanks since it stays on top of the sand/slag.
Good tip about sand substrates Soothing Shrimp! I also have sand substrates, but am worried about a shrimp running off with a piece of food and then it going missing in the tank so I use a dish for that reason