It is generally not recommended to eat cooked ground beef that has been refrigerated for 7 days. The USDA advises that cooked ground beef should be eaten within 3 to 4 days when stored in the refrigerator at or below 40°F (4°C). After this period, the risk of bacterial growth increases, even if the beef appears fine or smells okay.
If you are unsure about the safety of the beef, it’s better to err on the side of caution and discard it to avoid the risk of foodborne illness.
For future reference, if you need to keep cooked ground beef for a longer period, freezing it is a safer option. Cooked ground beef can last up to 3-4 months in the freezer.