Stored this way, whole onions can be kept for up to 3 months, while chopped and uncooked veggies can be saved for up to 14 days. Cooked onions have the shortest shelf life of only about three days ...

Article continues below Once chopped, she suggests popping the onions into a freezer bag to lock in their freshness for later use. These prepared onions can then be kept in the fridge for ...

If you have pinto beans, it's easy to use an entire can to make quick refried beans: Just heat some oil in a pan and saute chopped onion and jalapeño or Serrano chiles. Mash the beans or blend ...