Photoshop background out of images

I need the background cut out of the attached images so that it is on a white background. The canvas size is 230x190pixels. jpg. This first person to bid $10 I will hire and give perfect score if it is done fast and good. For the dressings (vinagrette, caesar, french) I attached a reference image (ketchup) make the items the same size. For pizzaburger and musroom burger I attached cheeseburger for sizing reference, make it just like that. Mushroom pizza put on white background Omelet cut just the omelet out and put it on a white background