The George Foreman Grill is a great tool when it comes to low-effort cooking, but it can be a pain to clean. A little parchment paper can solve that problem.
In this video, YouTuber SkewToob shows his method for cooking beef and chicken on a Foreman grill without ever needing to clean it. Just place a piece of parchment paper inside the grill so that it covers both sides and place your meat inside of it sandwich style. Most parchment paper is perfectly fine up to 400 degrees Fahrenheit and is used for baking, so it will be just fine in there. Once your food is all cooked, just toss the paper and your Foreman Grill will still look like new.