Preheat your oven to 350.
Put some ground beef on the bottom of your burger press. Flip the press handle over and hollow out the middle of the beef.
Add all your veggies and cheddar cheese if you'd like.
Add more beef on top and press with handle again to seal.
Remove burger from burger press. Salt and pepper your burger to your liking.
Wrap burger in foil and bake on rack in oven for 50 minutes.
Remove from foil carefully as there will be a lot of juice at the bottom.
Place burger on a bun and top however you choose, or just eat the burger with a fork!