While draining the grease off hamburger run a pizza cutter through it. It makes it fine not chunky. This helps when the hamburger still has chunks in it when you want it fine for taco meat or to place in a chilli.
To make hamburger a little more healthy remove a lot of the fat. When hamburger is done cooking place in a strainer and run hot water from the tap through it. It helps remove grease and will make the hamburger lighter in texture. It will also take seasoning on better.