[header] How to stretch hamburger [title] Add 1-2 cups quick oats per 2 pounds ground meat. [step] Too much oatmeal and your burger patty will fall apart, so experiment with less first and add gradually if needed. [substeps] Alternately, try using bean paste or cooked rice. 
[title] Mix in an egg or two per 1-2 pounds meat. [step] Two common ones are salt and pepper.