2 Edited for clarity.
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If the ground beef is very lean then adding a small amount of cooking oil to the pan is necessary. Otherwise, ultra-lean ground beef will burn and stick to the pan before the center of your burger is even done.Additionally Additionally the burger would be extremely dry and unappetizing when cooked. After

After it is done squeeze out excessive grease with napkins or paper towels before consuming. Hope this helps.

If the ground beef is very lean then adding a small amount of cooking oil to the pan is necessary. Otherwise, ultra-lean ground beef will burn and stick to the pan before the center of your burger is even done.Additionally the burger would be extremely dry and unappetizing when cooked. After it is done squeeze out excessive grease with napkins or paper towels before consuming. Hope this helps.

If the ground beef is very lean then adding a small amount of cooking oil to the pan is necessary. Otherwise, ultra-lean ground beef will burn and stick to the pan before the center of your burger is even done. Additionally the burger would be extremely dry and unappetizing when cooked.

After it is done squeeze out excessive grease with napkins or paper towels before consuming.

1
source | link

If the ground beef is very lean then adding a small amount of cooking oil to the pan is necessary. Otherwise, ultra-lean ground beef will burn and stick to the pan before the center of your burger is even done.Additionally the burger would be extremely dry and unappetizing when cooked. After it is done squeeze out excessive grease with napkins or paper towels before consuming. Hope this helps.