Step 1: Brown the Beef
Start by heating a large skillet over medium-high heat.
Add the beef and cook until nicely browned. If you’re using ground beef, make sure it is completely cooked through.
Browning the meat first is important because it creates the savory, roasted flavors that form the foundation of the casserole.
If there is a lot of excess fat in the pan, carefully drain some of it before continuing.
