While raw meat has more calories and nutrients than cooked meat, human jaw muscles and digestive organs have to work harder to chew and digest raw meat. The cooking process helps to break down tough proteins, making it easier for humans to eat and process.

Do you cook onions or ground beef first?

Also, the onions would express water, which would lower the temperature to simmer or steam, preventing the beef from browning. For these reasons, it is common to sear or brown the ground (minced) meat, and then add the onions to cook through when it is done or nearly done.

Do you saute meat or onions first?

If you are cooking beef or mutton, they simply take more time to brown. Onions would express water and that would lower down the temperature inside the pan that you are cooking. In such cases, you will need to put grounded meat first in the pan and wait for it to turn brown.