Why use two pans when you can use one? If you're making a meal that calls for browning ground beef, you can transfer it to another bowl once you're done. A quick wipe of the pot with a paper towel removes any grease from the cooked beef, and your pot is good to go for the remainder of the recipe. Then you won't have to wash more dishes than you need to!
Try this Kitchen Shortcut with Chili Mac.